Best app to clean up my laptop?

My laptop is a few years old and getting slow, I downloaded the demo of MacKeeper and it said I have a lot of issues, what I want to know is which is the version that will fix those issues? Will the basic version do it? I don't want to pay for the 60 euro version if the 40 euro one will do it.

In addition to the user tip stedman point you to, also read the tip by Thomas Reed: https://discussions.apple.com/docs/DOC-1982
There really are no programs you need to clean a Mac hard drive...most issues are due to the amount of storage being used. As you get close to a full hard drive the system slows down. You can see your hard drive usage by going to Finder, Applications, Utilities, Activity Monitor and see what your hard drive usage is, cpu usage, memory usage and network activity.
Clean off a lot of the videos, photos, tunes that are taking excessive space to speed the system.
Be cautious of software that is for cleanup as that can damage the operating system...just had a user today who did that and ended up having to reinstall Mac OS X becasue of all of the damaged files.

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What´s the best app to clean the junk from my mac?

what´s the best app to clean the junk from my mac?

I'm using CleanMyMac (http://macpaw.com/) and I'm pretty happy. Would recommend their lifetime license, not very common for MAC programs.

What is the best app for cleaning up the hard drive?

What is the best app for cleaning up the hard drive?

No such application needed.
Leave 10 to 15% disk space free.
Restart once in a while.
Keep a backup, clone preferably.
If there is any problem with the disk, repair disk.
    Repair Disk
    Steps 1 through 7
    http://support.apple.com/kb/PH5836
Best.

What's the best App for cleaning/speeding up Mac using Lion?

Can anyone recommend an App for cleaning/speeding up my iMac and Macbook Pro, both of which use Lion?
Hard drive space is not really the issue, but I can't help feeling that my iMac is not as nippy as it used to be - my basic requirements are:
1) Easy to use. I'm a competent user, but no guru.
2) Will confirm details of what is is deleting, cleaning before it does it.
3) Is reliable and won't crash or bugger-up my system.
4) Actually works - as I said, don't really need to reclaim storage, but would like to speed up my mac
5) Doesn't cost the earth.
You thoughts would be much appreciated.
Cheers all,
Simon.

Do the below and keep your boot drive below 50% filled and not more that 80%, that's about all you can do without a full reinstall of the OS.
12: OnyX cache cleaning
Category: OS X, application and User account software related
Description: Gives OS X, application and user account caches a enema, lets then rebuild again new, resolves strange and unknown issues based on cache files being corrupted .
Only cache files are removed, not users data, files, programs or OS X. Some settings will be set back to normal in Finder and other locations. Spotlight will rebuild a new database.
Problems possibly resolved: Varied: Flash install issues, Dock/Finder/File issues, "ghost files", performance and privacy related
Instructions:
Apple doesn't supply a easy method for the user to self clean the caches, thus we have to turn to third party software.
Use the free OnyX matching your OS X version and run all the initial checks, stop if any give a warning, you have a bigger problem. See #4
Run though all the Maintenance and Cleaning aspects (except don't delete the log files) and reboot at the end (must)
You must be through running all the maintenance and cleaning aspects as this is a "catch all" method and any number of corrupted caches may be responsible for your issues. You need to REBOOT at the end of using OnyX. Canceling the in-between reboot requests is fine.
Read Step #13 and perform the Verify > Preferences before rebooting at the end of using OnyX.
Get the free OnyX here: http://www.macupdate.com/app/mac/11582/onyx More info: https://en.wikipedia.org/wiki/OnyX
Just a few of OnyX many successes:
https://discussions.apple.com/message/18377471?ac_cid=sa123456#18377471
https://discussions.apple.com/message/18421933?ac_cid=sa123456#18421933
https://discussions.apple.com/message/18579487?ac_cid=sa123456#18579487

Which is the best app to clean my mac? MacKeeper?

i need to know what you recommend me to clean my computer. I have read that MacKeeper is not good at all so i don´t know what should i do.
thanks

If you have a problem, please describe it, rather than your conclusion as to how it should be solved. Otherwise, see below.
How to maintain a Mac
1. Make redundant backups, keeping at least one off site at all times. One backup is not enough. Don’t back up your backups; all should be made directly from the original data. Don’t rely completely on any single backup method, such as Time Machine. If you get an indication that a backup has failed, don't ignore it.
2. Keep your software up to date. In the App Store or Software Update preference pane (depending on the OS version), you can configure automatic notifications of updates to OS X and other Mac App Store products. Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. Otherwise you have to check yourself on a regular basis.
Keeping up to date is especially important for complex software that modifies the operating system, such as device drivers. Before installing any Apple update, you must check that all such modifications that you use are compatible. Incompatibility with third-party software is by far the most common cause of trouble with system updates.
3. Don't install crapware, such as “themes,” "haxies," “add-ons,” “toolbars,” “enhancers," “optimizers,” “accelerators,” "boosters," “extenders,” “cleaners,” "doctors," "tune-ups," “defragmenters,” “firewalls,” "barriers," “guardians,” “defenders,” “protectors,” most “plugins,” commercial "virus scanners,” "disk tools," or "utilities." With very few exceptions, such stuff is useless or worse than useless. Above all, avoid any software that purports to change the look and feel of the user interface.
It's not much of an exaggeration to say that the whole "utility" software industry for the Mac is a fraud on consumers. The most extreme example is the “MacKeeper” scam.
As a rule, the only software you should install is that which directly enables you to do the things you use a computer for, and doesn't change the way other software works.
Safari extensions, and perhaps the equivalent for other web browsers, are a partial exception to the above rule. Most are safe, and they're easy to get rid of if they don't work. Some may cause the browser to crash or otherwise malfunction. Some are malicious. Use with caution, and install only well-known extensions from relatively trustworthy sources, such as the Safari Extensions Gallery.
Never install any third-party software unless you know how to uninstall it. Otherwise you may create problems that are very hard to solve.
4. Beware of malware. Malware is malicious software that circulates on the Internet. This kind of attack on OS X used to be so rare that it was hardly a concern, but it's now increasingly common, and increasingly dangerous.
There is some built-in protection against downloading malware, but you can’t rely on it — the attackers are always at least one day ahead of the defense. You can’t rely on third-party protection either. What you can rely on is common-sense awareness — not paranoia, which only makes you more vulnerable.
Never install software from an untrustworthy or unknown source. If in doubt, do some research. Any website that prompts you to install a “codec” or “plugin” that comes from the same site, or an unknown site, is untrustworthy. Software with a corporate brand, such as Adobe Flash Player, must come directly from the developer's website. No intermediary is acceptable, and don’t trust links unless you know how to parse them. Any file that is automatically downloaded from the web, without your having requested it, should go straight into the Trash. A web page that tells you that your computer has a “virus,” or that anything else is wrong with it, is a scam.
In OS X 10.7.5 or later, downloaded applications and Installer packages that have not been digitally signed by a developer registered with Apple are blocked from loading by default. The block can be overridden, but think carefully before you do so.
Because of recurring security issues in Java, it’s best to disable it in your web browsers, if it’s installed. Few websites have Java content nowadays, so you won’t be missing much. This action is mandatory if you’re running any version of OS X older than 10.6.8 with the latest Java update. Note: Java has nothing to do with JavaScript, despite the similar names. Don't install Java unless you're sure you need it. Most people don't.
5. Don't fill up your boot volume. A common mistake is adding more and more large files to your home folder until you start to get warnings that you're out of space, which may be followed in short order by a boot failure. This is more prone to happen on the newer Macs that come with an internal SSD instead of the traditional hard drive. The drive can be very nearly full before you become aware of the problem.
While it's not true that you should or must keep any particular percentage of space free, you should monitor your storage use and make sure you're not in immediate danger of using it up. According to Apple documentation, you need at least 9 GB of free space on the startup volume for normal operation.
If storage space is running low, use a tool such as OmniDiskSweeper to explore the volume and find out what's taking up the most space. Move seldom-used large files to secondary storage.
6. Relax, don’t do it. Besides the above, no routine maintenance is necessary or beneficial for the vast majority of users; specifically not “cleaning caches,” “zapping the PRAM,” "resetting the SMC," “rebuilding the directory,” "defragmenting the drive," “running periodic scripts,” “dumping logs,” "deleting temp files," “scanning for viruses,” "purging memory," "checking for bad blocks," "testing the hardware," or “repairing permissions.” Such measures are either completely pointless or are useful only for solving problems, not for prevention.
To use a Mac effectively, you have to free yourself from the Windows mindset that every computer needs regular downtime maintenance such as "defragging" and "registry cleaning." Those concepts do not apply to the Mac platform. A computing device should not be a focus of your attention. It should be an almost invisible tool by means of which you communicate, work, and play. If you want a machine that is always whining for your attention like a neurotic dog, use a PC.
The very height of futility is running an expensive third-party application called “Disk Warrior” when nothing is wrong, or even when something is wrong and you have backups, which you must have. Disk Warrior is a data-salvage tool, not a maintenance tool, and you will never need it if your backups are adequate. Don’t waste money on it or anything like it.

What is the best app for iTunes cleanup?

I have several thousand songs in my iTunes library. What is the best app to clean up the library, eliminate dupes, fix titles, artists, get album art, etc.?

I have several thousand songs in my iTunes library. What is the best app to clean up the library, eliminate dupes, fix titles, artists, get album art, etc.?

Where to find the best application for cleaning out my MacBook Air with OS X 10.7.5? I've been using MacKeeper but believe it's slowing down my laptop considerable.

where to find the best application for cleaning out my MacBook Air with OS X 10.7.5? I've been using MacKeeper but believe it's slowing down my laptop considerable. Thank you.

How to maintain a Mac
1. Make redundant backups, keeping at least one off site at all times. One backup is not enough. Don’t back up your backups; make them independent of each other. Don’t rely completely on any single backup method, such as Time Machine. If you get an indication that a backup has failed, don't ignore it.
2. Keep your software up to date. In the Software Update preference pane, you can configure automatic notifications of updates to OS X and other Mac App Store products. Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. Otherwise you have to check yourself on a regular basis. This is especially important for complex software that modifies the operating system, such as device drivers. Before installing any Apple update, you must check that all such modifications that you use are compatible.
3. Don't install crapware, such as “themes,” "haxies," “add-ons,” “toolbars,” “enhancers," “optimizers,” “accelerators,” "boosters," “extenders,” “cleaners,” "doctors," "tune-ups," “defragmenters,” “firewalls,” "barriers," “guardians,” “defenders,” “protectors,” most “plugins,” commercial "virus scanners,” "disk tools," or "utilities." With very few exceptions, this stuff is useless, or worse than useless. Above all, avoid any software that purports to change the look and feel of the user interface.
The more actively promoted the product, the more likely it is to be garbage. The most extreme example is the “MacKeeper” scam.
As a rule, the only software you should install is that which directly enables you to do the things you use a computer for — such as creating, communicating, and playing — and does not modify the way other software works. Use your computer; don't fuss with it.
Safari extensions, and perhaps the equivalent for other web browsers, are a partial exception to the above rule. Most are safe, and they're easy to get rid of if they don't work. Some may cause the browser to crash or otherwise malfunction. Some are malicious. Use with caution, and install only well-known extensions from relatively trustworthy sources, such as the Safari Extensions Gallery.
Never install any third-party software unless you know how to uninstall it. Otherwise you may create problems that are very hard to solve.
4. Beware of trojans. A trojan is malicious software (“malware”) that the user is duped into installing voluntarily. Such attacks were rare on the Mac platform until sometime in 2011, but are now increasingly common, and increasingly dangerous.
There is some built-in protection against downloading malware, but you can’t rely on it — the attackers are always at least one day ahead of the defense. You can’t rely on third-party protection either. What you can rely on is common-sense awareness — not paranoia, which only makes you more vulnerable.
Never install software from an untrustworthy or unknown source. If in doubt, do some research. Any website that prompts you to install a “codec” or “plugin” that comes from the same site, or an unknown site, is untrustworthy. Software with a corporate brand, such as Adobe Flash Player, must be acquired directly from the developer. No intermediary is acceptable, and don’t trust links unless you know how to parse them. Any file that is automatically downloaded from a web page without your having requested it should go straight into the Trash. A website that claims you have a “virus,” or that anything else is wrong with your computer, is rogue.
In OS X 10.7.5 or later, downloaded applications and Installer packages that have not been digitally signed by a developer registered with Apple are blocked from loading by default. The block can be overridden, but think carefully before you do so.
Because of recurring security issues in Java, it’s best to disable it in your web browsers, if it’s installed. Few websites have Java content nowadays, so you won’t be missing much. This action is mandatory if you’re running any version of OS X older than 10.6.8 with the latest Java update. Note: Java has nothing to do with JavaScript, despite the similar names. Don't install Java unless you're sure you need it. Most people don't.
5. Don't fill up your boot volume. A common mistake is adding more and more large files to your home folder until you start to get warnings that you're out of space, which may be followed in short order by a boot failure. This is more prone to happen on the newer Macs that come with an internal SSD instead of the traditional hard drive. The drive can be very nearly full before you become aware of the problem. While it's not true that you should or must keep any particular percentage of space free, you should monitor your storage consumption and make sure you're not in immediate danger of using it up. According to Apple documentation, you need at least 9 GB of free space on the startup volume for normal operation.
If storage space is running low, use a tool such as the free application OmniDiskSweeper to explore your volume and find out what's taking up the most space. Move rarely-used large files to secondary storage.
6. Relax, don’t do it. Besides the above, no routine maintenance is necessary or beneficial for the vast majority of users; specifically not “cleaning caches,” “zapping the PRAM,” "resetting the SMC," “rebuilding the directory,” "defragmenting the drive," “running periodic scripts,” “dumping logs,” "deleting temp files," “scanning for viruses,” "purging memory," "checking for bad blocks," "testing the hardware," or “repairing permissions.” Such measures are either completely pointless or are useful only for solving problems, not for prevention.
The very height of futility is running an expensive third-party application called “Disk Warrior” when nothing is wrong, or even when something is wrong and you have backups, which you must have. Disk Warrior is a data-salvage tool, not a maintenance tool, and you will never need it if your backups are adequate. Don’t waste money on it or anything like it.

What is the best way to clean a soft screen on a laptop

what is the best way to clean a soft screen on a laptop

i dont know what you mean by "a soft screen", but read this: To clean the screen on your MacBook, MacBook Pro, or MacBook Air, first shut down the computer and unplug the power adapter. Dampen the included cleaning cloth with just water and wipe the screen. Do not spray liquid directly onto the screen.
http://support.apple.com/kb/HT3226#portables

What is best way to clean up startup disc? What apps work?

What is the best way to clean up my startup disc? Are any of the clean up apps trustworthy?

Here are some general tips to keep your Mac's hard drive trim and slim as possible
You should never, EVER let a computer hard drive get completely full, EVER!
With Macs and OS X, you shouldn't let the hard drive get below 15 GBs or less of free data space.
If it does, it's time for some hard drive housecleaning.
Follow some of my tips for cleaning out, deleting and archiving data from your Mac's internal hard drive.
Have you emptied your Mac's Trash icon in the Dock?
If you use iPhoto or Aperture, both have its own trash that needs to be emptied, also.
If you store images in other locations other than iPhoto, then you will have to weed through these to determine what to archive and what to delete.
If you are an iMovie/ Final Cut user, both apps have their own individual Trash location that needs to be emptied, too!
If you use Apple Mail app, Apple Mail also has its own trash area that needs to be emptied, too!
Delete any old or no longer needed emails and/or archive to disc, flash drives or external hard drive, older emails you want to save.
Look through your other Mailboxes and other Mail categories to see If there is other mail you can archive and/or delete.
STAY AWAY FROM DELETING ANY FILES FROM OS X SYSTEM FOLDER!
Look through your Documents folder and delete any type of old useless type files like "Read Me" type files.
Again, archive to disc, flash drives, ext. hard drives or delete any old documents you no longer use or immediately need.
Look in your Applications folder, if you have applications you haven't used in a long time, if the app doesn't have a dedicated uninstaller, then you can simply drag it into the OS X Trash icon. IF the application has an uninstaller app, then use it to completely delete the app from your Mac.
To find other large files, download an app called Omni Disk Sweeper.
http://www.omnigroup.com/more
Also, Find Any File
http://apps.tempel.org/FindAnyFile/
Typically, iTunes and iPhoto libraries are the biggest users of HD space.
move these files/data off of your internal drive to the external hard drive and deleted off of the internal hard drive.
If you have any other large folders of personal data or projects, these should be archived or moved, also, to the optical discs, flash drives or external hard drive and then either archived to disc and/or deleted off your internal hard drive.
Moving iTunes library
http://support.apple.com/kb/HT1449
Moving iPhoto library
http://support.apple.com/kb/PH2506
Moving iMovie projects folder
http://support.apple.com/kb/ph2289
Things to consider before moving your iPhoto Library Folder to a new or external location like an external hard drive.
If you make movies on any iDevices using iMovie for iOS,, then transfer the video footage, the IOS version of iMovie saves the footage as a movie file in IPhoto for IOS and will automatically get transferred to iPhoto for the Mac when you upload the video from your iDevice.
Newer versions of iMovie will work and link those video files found in your iPhoto Library on your Mac, but those links can be lost if you move your iPhoto library and you will not be able to relink that video afterwards as the current versions of iMovie seem to not have a relink option for the video portion of the files (ironically, current versions of iMovie HAVE the ability to re-link the audio files from the video footage, though (The inability to re-link the video files could be a possible bug or oversight in current versions iMovie).
The lost video links show up as "blacked-out" video blocks with no content.
Before moving the iPhoto Library
If you make movies with iMovie using iPad or iPhone video then 'Consolidate' the files before you finish. This will gather (albeit by duplicating) all the relevant files in the project in one place. After consolidating/duplicating all of the audio and video footage to a seperate, independent location,it should be safe to move your iPhoto library.
The potential way to circumvent this issues maybe to try and import iPad and iPhoto video directly into iMovie which would be another solution.
Good Luck!

Best way to clean laptop files

What is the best way to "clean" my laptop. I have noticed it running slower lately. I do see pop ups for some sort of mac cleaner. Is this safe? I am a new mac user (had this laptop for just over a year). Any help is appreciated.

How large is you HD and how much space do you have left?
Check out the following & do the necessary: User Tip: Why is my computer slow?
What to do when your computer is too slow
Speeding up your Mac
================
I do see pop ups for some sort of mac cleaner. Is this safe?
Nope!

Best way to clean laptop screen??

What is the best way to clean a laptop screen?

If you are only talking about fingerprints and dust, a microfiber cloth works great. Gets everything off without scratching.
If there are things on the screen that don't come off by wiping, do not use chemical or spray products as they can get into places they don't belong. A slightly damp cloth, very very slightly damp not wet, and wipe only on the screen surface, not along the edges where moisture can get inside.
But if you use any moisture you have to be really careful as electronics and liquids do not play well together.

What's the best way to cleanly stop Goldengate?

For routine maintenance/upgrades what's the best way to cleanly stop GoldenGate? I don't want to wait endlessly. I use this currently and seen no issues :-
stop er *!
kill er *!
stop manager!
Thanks,
Shankar

shiyer wrote:
For routine maintenance/upgrades what's the best way to cleanly stop GoldenGate? I don't want to wait endlessly. I use this currently and seen no issues :-
stop er *!
kill er *!
stop manager!
For routine maintenance/upgrades, just {noformat} "stop er *" {noformat} should be preferred; and when all processes are stopped, mgr can (optionally) be stopped. If you really are waiting endlessly for this to return, the real question is "why": then, perhaps there are other parameters that can be adjusted to make GG stop more quickly. (On the other hand, {noformat} "stop mgr!" {noformat} is harmless, the "!" simply prevents it from asking "are you sure?" before stopping the process.)
I really wouldn't use "kill" unless you really have a good reason to (and the reason itself requiring the process to be killed should be analyzed & resolved). To "kill" a process shouldn't cause data loss (GG always maintains checkpoints to prevent this) -- but still it seems unnecessary, unless there really is something that should be killed. (Aside: I mean, I can kill -9 / "force quit" my browser and/or 'halt' my laptop every time as well, and it would probably be "faster" to -- but it can cause issues (and wasted time) upon restart: i.e., fsck, recover sessions, whatever. Same basic idea, imo.)
There's a reason there are different commands to 'stop' processes (stop vs. stop! vs. kill). Just for example, "stop replicat !" causes current transactions to be rolled back; there typically is no reason for this, you'll just restart that txn when the process is restarted; might as well let the current one finish. And "kill extract" (I believe) will not warn about potentially "long running transactions" that can cause (painful) issues at startup (missing old archive logs, etc). There are probably other examples, as well.
So if this really is "routine", then "stop", don't "stop!" or "kill". If there are long delays, see why first & see if they can be addressed independently. (This really is just a stock answer for a generic question, it would be irresponsible for me to answer otherwise :-) )

Best way to clean all data n8

hello, can anyone please tell me whats d best way to clean out all data - phone numbers, photos, videos maps, apps all from d from my n8, i have backed up necessory info usin ovi sync, i just want a clean fresh start with d phone is too full
Solved!
Go to Solution.

Enter *#7370# followed by the security code which is 12345 by default. You must have a SIM inserted for this to work I believe (been a while).
This will erase all data and restore settings to factory defaults.
Click on the blue Star Icon below if my advice has helped you or press the 'Accept As Solution' link if I solved your problem..

What is the best way to 'clean up" a Mac that has been going for about 2 years. I reset safari frequently but need to be sure stuff I don't want is gone.

What is the best way to 'clean up" a Mac that has been going for about 2 years. I reset safari frequently but need to be sure stuff I don't want is gone.

I'd gather by your "reset Safari" and "clean up" you mean by sites you rather not have your mom see.
Hidden Flash cookies are stored in "Macromedia" Folders on your computer, can delete using the free Easy Find first, but need to reinstall Flash again here
http://www.macupdate.com/app/mac/11076/easyfind
http://get.adobe.com/flashplayer/
OnyX run All the cleaning and maintenance steps followed by a reboot, followed by a Disk Utility erase free space.
http://www.titanium.free.fr/
CCleaner is in beta for OS X, can combine the cleaning and secure erase in the same steps if properly configured.
http://www.piriform.com/mac/ccleaner
Every web site knows your apx location.
http://www.whatsmyip.org/more/
To be sure to have a clean machine, a
Restoring OS X - 10.6 "fresh install method"
Restoring OS X - 10.7 - wipe and install
is the only way as you only bring files back to the machine that you know what they are, everything else is removed.
https://discussions.apple.com/message/16276201#16276201

Best application for cleaning my files

Best application for cleaning my files?

How to maintain a Mac
1. Make redundant backups, keeping at least one off site at all times. One backup is not enough. Don’t back up your backups; make them independent of each other. Don’t rely completely on any single backup method, such as Time Machine. If you get an indication that a backup has failed, don't ignore it.
2. Keep your software up to date. In the Software Update preference pane, you can configure automatic notifications of updates to OS X and other Mac App Store products. Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. Otherwise you have to check yourself on a regular basis. This is especially important for complex software that modifies the operating system, such as device drivers. Before installing any Apple update, you must check that all such modifications that you use are compatible.
3. Don't install crapware, such as “themes,” "haxies," “add-ons,” “toolbars,” “enhancers," “optimizers,” “accelerators,” “extenders,” “cleaners,” "doctors," "tune-ups," “defragmenters,” “firewalls,” "barriers," “guardians,” “defenders,” “protectors,” most “plugins,” commercial "virus scanners,” "disk tools," or "utilities." With very few exceptions, this stuff is useless, or worse than useless.
The more actively promoted the product, the more likely it is to be garbage. The most extreme example is the “MacKeeper” scam.
As a rule, the only software you should install is that which directly enables you to do the things you use a computer for — such as creating, communicating, and playing — and does not modify the way other software works. Use your computer; don't fuss with it.
Never install any third-party software unless you know how to uninstall it. Otherwise you may create problems that are very hard to solve.
The free anti-malware application ClamXav is not crap, and although it’s not routinely needed, it may be useful in some environments, such as a mixed Mac-Windows enterprise network.
4. Beware of trojans. A trojan is malicious software (“malware”) that the user is duped into installing voluntarily. Such attacks were rare on the Mac platform until sometime in 2011, but are now increasingly common, and increasingly dangerous.
There is some built-in protection against downloading malware, but you can’t rely on it — the attackers are always at least one day ahead of the defense. You can’t rely on third-party protection either. What you can rely on is common-sense awareness — not paranoia, which only makes you more vulnerable.
Never install software from an untrustworthy or unknown source. If in doubt, do some research. Any website that prompts you to install a “codec” or “plugin” that comes from the same site, or an unknown site, is untrustworthy. Software with a corporate brand, such as Adobe Flash Player, must be acquired directly from the developer. No intermediary is acceptable, and don’t trust links unless you know how to parse them. Any file that is automatically downloaded from a web page without your having requested it should go straight into the Trash. A website that claims you have a “virus,” or that anything else is wrong with your computer, is rogue.
In OS X 10.7.5 or later, downloaded applications and Installer packages that have not been digitally signed by a developer registered with Apple are blocked from loading by default. The block can be overridden, but think carefully before you do so.
Because of recurring security issues in Java, it’s best to disable it in your web browsers, if it’s installed. Few websites have Java content nowadays, so you won’t be missing much. This action is mandatory if you’re running any version of OS X older than 10.6.8 with the latest Java update. Note: Java has nothing to do with JavaScript, despite the similar names. Don't install Java unless you're sure you need it. Most users don't.
5. Don't fill up your boot volume. A common mistake is adding more and more large files to your home folder until you start to get warnings that you're out of space, which may be followed in short order by a boot failure. This is more prone to happen on the newer Macs that come with an internal SSD instead of the traditional hard drive. The drive can be very nearly full before you become aware of the problem. While it's not true that you should or must keep any particular percentage of space free, you should monitor your storage consumption and make sure you're not in immediate danger of using it up. According to Apple documentation, you need at least 9 GB of free space on the startup volume for normal operation.
If storage space is running low, use a tool such as the free application OmniDiskSweeper to explore your volume and find out what's taking up the most space. Move rarely-used large files to secondary storage.
6. Relax, don’t do it. Besides the above, no routine maintenance is necessary or beneficial for the vast majority of users; specifically not “cleaning caches,” “zapping the PRAM,” "resetting the SMC," “rebuilding the directory,” "defragmenting the drive," “running periodic scripts,” “dumping logs,” "deleting temp files," “scanning for viruses,” "purging memory," "checking for bad blocks," or “repairing permissions.” Such measures are either completely pointless or are useful only for solving problems, not for prevention.
The very height of futility is running an expensive third-party application called “Disk Warrior” when nothing is wrong, or even when something is wrong and you have backups, which you must have. Disk Warrior is a data-salvage tool, not a maintenance tool, and you will never need it if your backups are adequate. Don’t waste money on it or anything like it.

Best app to clean up my laptop?

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