What is a cache and can I erase them to save space? (would it be bad if i did)

I am in high school and i've had my laptop for about 5 years now. I am into photography so thats where most of the memory on my computer can be found, I currently have 7.94 GB of room left. I'm trying to erase as much as i can to get some room back and i keep coming across caches. in fact i have about 346. So i was wondering what they are and can i delete them without harming anything.

Caches are small files that load up for example in Safari or whatever browser you use, they stay on your computer so that if you ever went to that website again it will load faster. You can clear the caches, but you'll be clearing everything that helps you load content faster, granted you probably don't use all the ones that you were using 5 years ago, the will automatically repopulate once you go the website again with a new cache file, so it's up to you. Best way, just boot to Safe mode, it'll clear caches and reset your preferences. You can clear more, but that's up to you.

Similar Messages

Music I purchased on I Tunes is not available when I open ITunes in I Movie. I Movie says those files are "protected" and not accessible. What does that mean and can I change them to "unprotected" so I can use them in IMovie?

Most of the music that I purchased on I Tunes I bought and downloaded on my old I Mac which I replaced with this I Mac about 9 months ago. When I"m using I Movie on this I Mac and try to open I Tunes tab in I Movie, most of the files are not accessible because I Movie says those fields are protected. What does that mean and can I change those files to unprotected so they show up in my music in IMovie?
This I Mac is OS X version 10.9.5 Maverick, 2.7GHz Intel Core 15 processor, 8GB 1600MHz DDR3 memory.

Your older iTunes music purchases included DRM software to prevent sharing.
iTunes Store: iTunes Plus Frequently Asked Questions (FAQ) - Apple Support
For some money you can get it removed and get a better quality file to boot.

Somehow, got many copeis of the same site in my bookmark forlder and can't erase them. Please advise.

I think because of some glinch in Firefox, I received hundereds of the same side web address in my bookmark folder. When I attempt to delete them one by one, FFOx goes into some form of staleness. What is the short cut for deleting from bookmark folder. I am not even sure if it is possible. Have set my life with FFox and don't want to go back to default if I can help it.

Problems with bookmarks and history not working properly can
be caused by a corrupted '''places.sqlite''' database file.
Type '''about:support''' in the address bar and press enter.
Under the page logo on the left side you will see '''Application Basics.'''
Under this find '''Profile Folder.''' To it’s right press the button
'''Show Folder.''' This will open your file browser to the current
Firefox profile. Now '''Close Firefox.'''
Locate the file. Then rename or delete it. Restart Firefox.

What are Core files and can I delete them?

I need to clean out duplicate and needless files. What are Core.XXXX files and what happens if I delete them?

Here's an update, in case anyone else has this problem: I trashed the files, and no problems whatsoever.

My iMac has a1T hard drive,and it is full!. So i look for archives and there are 6000 mailrecoveredfrom gmail, and i can not erase them. Is it a virus? What can i do?

My iMac has a 1T hard drive and it is full ! So i look for the archives and there are6000 mails recovered from gmail and i can not erase them. Is it a virus?
What can i do ?

It sounds like a runaway process is filling up your volume.
Boot in safe mode. First, disconnect all wired peripherals except keyboard, mouse, and monitor, if applicable, and remove all aftermarket expansion cards. The instructions provided by Apple are as follows:
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including your login items.
Use a tool such as the one linked below to explore your volume and find out what's taking up the space:
OmniDiskSweeper - Products - The Omni Group

When I plug in iPhone (5.1.1) to computer, playlists show up on the iPhone (when plugged in), that do not appear when it is not plugged in. And I can't erase them. I have iTunes match, and deleted all my music on the iPhone, but that had no effect.

When I plug in iPhone (5.1.1) to computer, playlists show up on the iPhone (when plugged in), that do not appear when it is not plugged in. And I can't erase them. I have iTunes match, and deleted all my music on the iPhone, but that had no effect on the phantom playlist that shows up on the PC when I plug in the iPhone to the PC. I cannot manually move songs or playlists from the PC to the iPhone
Help greatly appreciated.

Unplug your Iphone out of your computer and replug it back in. It took me several times before I could do this

What are .ds_store files and can they be removed?

What are .ds_store files and can they be removed?

Probably the easiest way is to use Onyx.
If you show invisibles you can see ds_store in each folder.
Open Terminal.app (it's in /Applications/Utilities) and copy & paste this command at the prompt...
sudo chflags nohidden
Press return.
The reverse is
sudo chflags hidden

When I connect my iPod3 to my Imac, the memory shows 13GB or so assigned to "other" (color coded yellow). What is this "other, and can I clear it?

When I connect my iPod3 to my Imac, the memory shows 13GB or so assigned to "other" (color coded yellow). What is this "other", and can I clear it?

The "Other" section on your iPod consists of several different things including album artwork, files you may or could be storing on it externally when using the iPod as a storage disk, the iPod's software/OS, as well as corrupt files that are leftover from failed sync operations with iTunes or are no longer recognized by the iPod's software or iTunes. The size of other is usually quite minute, around less than a GB, sometimes a little more (depending on the amount of media stored on your iPod).
In order to clear this space out, you'll need to restore your iPod to factory settings in iTunes.
B-rock

What is NavAPvc.log and can I trash it????

Ok, under... Go > Computer > Macintosh HD > Users > Shared > There is a file called... NavAPvc.log
What is this file and can I trash it???
I am trying to clean up my system as it has not been running well lately... Hanging and Crashing a lot.....
Anyway... Can somebody help me out with this file????
Thank you in advance for your help on this....
Cheers,
JAG

The process navapvc.log is added by a variant of the AGOBOT/GAOBOT WORM.
This is a PC Worm. It will not effect your Mac but you should trash it anyway,.

What is facetime audio and can I use it to make free international calls between iPhones?

what is facetime audio and can I use it to make free international calls between iphones?

First, check
1. Settings > General > Restrictions: should be OFF > FaceTime: ON?
2. Settings > FaceTime > FaceTime: ON?
ou can be reached by FaceTime at: your phone number?
If all the above are correct, see below:
FaceTime is available with iPhone 4 or latter, except those iPhones that were sold in the Middle East.
Can you tell us which iPhone model that has no FaceTime?

Thunderbird 24.5.0 blue belt on imap inbox archives folder and one subfolder. What does this mean and can it be changed?

Thunderbird 24.5.0 has a blue belt on imap, inbox, archives folder and one of 4 subfolders. What does this mean and can it be changed?

I see these on my Windows machine but not here in Linux, so I guess it's connected with the icon set available in your OS GUI.
Changing the theme may provide the result you want.Given that icons are OS and theme specific, it's hard to find definitive descriptions of their meanings. :-(
This [http://kb.mozillazine.org/Icons_-_Thunderbird_2 old article] is silent on this topic, whilst indicating how two major platforms are quite different in their appearance.

HT1937 I have two security question and can not remember them also I do not have rescue email address, what Can I do?

I have two security question and can not remember them also I do not have rescue email address, what Can I do?

You need to ask Apple to reset your security questions; ways of contacting them include clicking here and picking a method for your country, phoning AppleCare and asking for the Account Security team, and filling out and submitting this form.
They wouldn't be security questions if they could be bypassed without Apple verifying your identity.
(101276)

I just bought an ipad 2 and the iPad keyboard dock and can't get them to work. What do I need to do?

I just bought an iPad 2 and a iPad keyboard dock and can't get them to work together. What do I need to do?

Hello,
You would need to pair the Apple Remote with the receiver. So I would use the generic Mac/PC receiver and follow these instructions:
http://support.apple.com/kb/HT1619
If that doesn't work then check in System Profiler to see if the IR receiver has been recognized by the PowerBook's hardware. You may require the install of drivers for this device to be recognized.
Best of luck

Okay, let's say you bought an album and there are a few songs on there where you only have half the song(the song just stops after a number of minutes/seconds). What do you do, and can you re-download these songs?

Okay, let's say you bought an album and there are a few songs on there where you only have half the song(the song just stops after a number of minutes/seconds). What do you do, and can you re-download these songs?

How to report an issue with Your iTunes Store purchase

I imported photos from an old iPhoto (2001) to photo library and can now see them as thumbnails but not when I click on them. The screen is black cannot see or print either. Is there any way to salvage those old photos? I now use iLife09. OS 10.6

I imported photos from an old iPhoto (2001) to photo library and can now see them only as thumbnails but not when I click on them. The screen is black cannot see or print either. Is there any way to salvage those old photos? I now use iLife09. OS 10.6

Did you import the old iPhoto library into the new one? That's not what you want to do because you will import all of the original, modified and thumbnail files as if they were original files. Lots of duplicates and useless small photos.
Do you have a backup copy of the library that you imported into to? If you do then bring it in and then use iPhoto Library Manager to merge the two libraries into a new, 3rd library.
If you don't then you'll have to try to fix the current one and then cull out the duplicates and small useless photos as follows: make a temporary, duplicate copy of your library and apply the three fixes in order as necessary.
Fix #1
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your HD/User/Home()/ Library/Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your HD/User/Home()/Library /Caches/com.apple.iPhoto folder.
3 - launch iPhoto and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto. You'll also have to reset the iPhoto's various preferences.
Fix #2
Launch iPhoto with the Command+Option keys held down and rebuild the library.
Select the options identified in the screenshot.
Fix #3
Using iPhoto Library Manager to Rebuild Your iPhoto Library
Download iPhoto Library Manager and launch.
Click on the Add Library button, navigate to your Home/Pictures folder and select your iPhoto Library folder.
Now that the library is listed in the left hand pane of iPLM, click on your library and go to the File ➙ Rebuild Library menu option
In the next window name the new library and select the location you want it to be placed.
Click on the Create button.
Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments but not books, calendars or slideshows. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.
If this doesn't fix the problem you'll have to start over from scratch and create a new library from the files inside the Originals folder of your current library. But first you should cull out the small photos that would be the thumbnails from the 2001 library.
Move the Originals folder to the Desktop, open and do a search for Kind=photo, File size is less than 10 KB. That should find all of the thumbnail files which you can then drag to the Trash. You might have to make that less than 50 KB. Then Import the remaining photos into a new iPhoto library.
OT

What is a cache and can I erase them to save space? (would it be bad if i did)

Similar Messages

Maybe you are looking for