Frequent need for smu reset and restart

What could be causing this? A little background: Everything had been fine for some time, than just recently have had problems with this iMac. I had 2 gigs of crucial ram that appeared to go bad in the last two weeks, evidenced by kernel panics. Replaced that with the old chip (512 megs) that I was able to get to work. Now from time to time, the computer will freeze and the fan noise will get very loud. This is solved by a restart. Frequently, especially after the computer has been shut down overnite, I need to do an smu reset (unplug the power cord for 10 seconds, plug it back in with the power button held down, then restart.)

I opened up the back of the computer. There are no obviously burnt or exploded capacitors, there is maybe one that is a little bulging on top. I then took apart the power supply and visually inspected the capacitors. There were no obviously burnt or exploded capacitors, there were two where the top was a little bit bulging.
I examined the LEDs on the motherboard. They seem fine.
I am still getting the odd kernel panic. I booted up from the install disk and attempted to do a disk repair and got an error saying "invalid key for thread record".
So I am really perplexed. This computer is nearly 5 years old, and while I would love to get it working reliably, I wonder if I am at the point of diminishing returns, in other words don't throw good money after bad. I have read that DiskWarrior might be useful, but that is $100. Power supply might be bad, hard drive might be going, and I'm not even sure if that is the entire extent of the problem!!!

Similar Messages

When syncing with itunes, got error message saying had error and now ipad2 will not do anything other than showing the USB cable with arrow pointing to Itunes on screen. have done the reset and restart, but still get same thing.

when syncing with itunes, got error message saying had error and now ipad2 will not do anything other than showing the USB cable with arrow pointing to Itunes on screen. have done the reset and restart, but still get same thing. Ipad does not show up in itunes even though cable plugged in. Have shut down and restarted Windows 7 computer.

I had done all of that to no avail. I did call Apple Tech Support and after he suggested I try a USB port in the rear of the Win 7 computer, things starting working again. I had tried switching the USB port at the front of the machine but that had not helped. Everything is good to go again. thanks for your reply

HT201559 I have tried to reset and restart my iPod touch but it remains stuck at the apple logo and turns off. The iPod is not responsive when i connect it to my computer or wall charger.

I have tried to reset and restart my iPod touch but it remains stuck at the apple logo and turns off. The iPod is not responsive when i connect it to my computer or wall charger.

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

So I backed up my iPhone on iTunes and I need to erase everything and restart my phone to factory defaults. If i erase everything then click restore will that work?

SO I BACKED UP MY IPHONE ON ITUNES AND I NEED TO ERASE EVERYTHING AND RESTART IT TPO FACTORY DEFAULTS. IF I ERASE EVERYTHING ON MY PHONE THEN CLICK RESTORE BACKUP ON ITUNES WILL THAT WORK?

Thank you so much! I was really hesitant because I did not want to lose everything on my phone.

Color management help needed for adobe CS5 and Epson printer 1400-Prints coming out too dark with re

Color management help needed for adobe CS5 and Epson printer 1400-Prints coming out too dark with reddish cast and loss of detail
System: Windows 7
Adobe CS5
Printer: Epson Stylus Photo 1400
Paper: Inkjet matte presentation paper with slight luster
Installed latest patch for Adobe CS5
Epson driver up to date
After reading solutions online and trying them for my settings for 2 days I am still unable to print what I am seeing on my screen in Adobe CS5. I calibrated my monitor, but am not sure once calibration is saved if I somehow use this setting in Photoshop’s color management.
The files I am printing are photographs of dogs with lots of detail I digitally painted with my Wacom tablet in Photoshop CS5 and then printed with Epson Stylus 1400 on inkjet paper 20lb with slight luster.
My Printed images lose a lot of the detail & come out way to dark with a reddish cast and loss of detail when I used these settings in the printing window:
Color Handling: Photoshop manages color, Color management -ICM, OFF no color adjustment.
When I change to these settings in printer window: Color Handling: Printer manages color. Color management- Color Controls, 1.8 Gamma and choose Epson Standard it prints lighter, but with reddish cast and very little detail and this is the best setting I have used so far.
Based on what I have read on line, I think the issue is mainly to do with what controls are set in the Photoshop Color Settings window and the Epson Printer preferences. I have screen images attached of these windows and would appreciate knowing what you recommend I enter for each choice.
Also I am confused as to what ICM color management system to use with this printer and CS5:
What is the best ICM to use with PS CS5 & the Epson 1400 printer? Should I use the same ICM for both?
Do I embed the ICM I choose into the new files I create?
Do I view all files in the CS5 workspace in this default ICM?
Do I set my monitor setting to the same ICM?
If new file opens in CS5 workspace and it has a different embedded profile than my workspace, do I convert it?
Do I set my printer, Monitor and PS CS5 color settings to the same ICM?
Is using the same ICM for all devices what is called a consistent workflow?
I appreciate any and all advice that can be sent my way on this complicated issue. Thank you in advance for your time and kind help.

It may be possible to figure out by watching a Dr.Brown video on the subject of color printing. Adobe tv
I hope this may help...............

Camera is not working on my iphone4 , I have tried to restore,reset and restart....just stays closed...

Hi,
I have tried to restore, reset and restart my phone....
I even sent it in to the shop I bought it from...which took a whole week...It worked once after that...now is back to the same old black closed screen....
Help!!

Restore as new... if that does not rectify the problem, it's time to have the device replaced under warranty.

I updated my iPad software to 7.0 and now I can't connect to my network, although I reset and restarted iPad. Network connection is fine on all other devices

I updated my iPad 2 software to 7.0.3?(the latest update), and now I can't connect to my network. I tried reset and restart and that did not work. I have no network problems with my other devices.

Try reset all settings
Settings>General>Reset>Reset All Settings
Note: Data will not be affected but settings will be reset.

Connected my iphone to itunes earlier today...it was working fine...now i get an error message saying that my phone is in recovery mode...needs to be reset and that all media and contacts will be deleted.....is this really true? or is there a solution

connected my iphone to itunes earlier today...it was working fine...now i get an error message saying that my phone is in recovery mode...needs to be reset and that all media and contacts will be deleted.....is this really true? or is there a solution

No it's not true. It's one big practical joke being played on you by Apple.

HT201328 If the new SIM is working, and I backed up the Iphone-4, why do I need to to RESET and Restore, as mentioned in the "About Unlocking" instruction?

If the new SIM is working, and I backed up the Iphone-4, why do I need to to RESET and Restore, as mentioned in the "About Unlocking" instruction?

I think you haven't told us the whole story. If the phone was working on multiple carriers before it was officially unlocked it was hacked to do so. If it wasn't, and you haven't seen the message "Congratulations. Your iPhone is unlocked" then you must still Restore iOS on it to get this message.

Constant need to reboot AppleTV *AND* restart iTunes for Home Sharing to work

Environment:
iTunes Host Computer:
AppleTV's: Three. All Model A1469, All currently running latest version of OS, [7.1 (7003)]
Network: Wired Ethernet (1000MB) using three D-Link Green DSG-1008G dumb routers, one Apple Airport Extreme (running 7.6.4), and one AT&T DSL Gateway directly connected to the Airport Extreme WAN port.
Situation: Since the latest updates to OS 7 on the AppleTV, and 10.10 - Yosemite on the iTunes Host Computer, I've had issues with Home Sharing NOT being able to hold a connection between the AppleTV and the iTunes Host computer. This disconnect shows on up as a "...turn on home sharing in iTunes..." screen on the AppleTVs. (I should also note that you can't access Home Sharing during this interruption via another computer either. I've tried this, thinking it was an issue with the AppleTV, however, the computer just will not see the Home Share. Once iTunes is restarted, the Home Share shows up in the iTunes shared list.)
I actually think there are TWO problems here; 1) the AppleTV loss of connection to the Home Share, 2) The need to refresh the iTunes Home Share.
Problem 1 is demonstrated by this example: IF I restart iTunes, then wake an AppleTV to view content, I get the "...turn on Home Sharing..." screen. If, however, I do nothing else BUT reset the AppleTV, the Home Share works perfectly.
Problem 2 is demonstrated by this example: IF I wake an AppleTV, then reset that same AppleTV without restarting iTunes on the host computer, I get the "...turn on Home Sharing..." screen.
The ONLY way I don't get the "...turn on Home Sharing..." screen is when I reset the AppleTV, AND restart iTunes. Somehow I don't think this is the way this should be working.
NOTE: In all of these scenarios, I've never had to re-login to Home Sharing on the iTune host. The credentials are working.
NOTE 2: I've completed ALL of the Apple recommended troubleshooting steps, and a good number of other ones suggested by this forum, including renaming the host computer, changing the Home Share Name, reissuing IP addresses, rewiring the network, opening or shutting off of all firewalls, etc.
Any assistance with this issue would be greatly appreciated.

Environment:
iTunes Host Computer:
AppleTV's: Three. All Model A1469, All currently running latest version of OS, [7.1 (7003)]
Network: Wired Ethernet (1000MB) using three D-Link Green DSG-1008G dumb routers, one Apple Airport Extreme (running 7.6.4), and one AT&T DSL Gateway directly connected to the Airport Extreme WAN port.
Situation: Since the latest updates to OS 7 on the AppleTV, and 10.10 - Yosemite on the iTunes Host Computer, I've had issues with Home Sharing NOT being able to hold a connection between the AppleTV and the iTunes Host computer. This disconnect shows on up as a "...turn on home sharing in iTunes..." screen on the AppleTVs. (I should also note that you can't access Home Sharing during this interruption via another computer either. I've tried this, thinking it was an issue with the AppleTV, however, the computer just will not see the Home Share. Once iTunes is restarted, the Home Share shows up in the iTunes shared list.)
I actually think there are TWO problems here; 1) the AppleTV loss of connection to the Home Share, 2) The need to refresh the iTunes Home Share.
Problem 1 is demonstrated by this example: IF I restart iTunes, then wake an AppleTV to view content, I get the "...turn on Home Sharing..." screen. If, however, I do nothing else BUT reset the AppleTV, the Home Share works perfectly.
Problem 2 is demonstrated by this example: IF I wake an AppleTV, then reset that same AppleTV without restarting iTunes on the host computer, I get the "...turn on Home Sharing..." screen.
The ONLY way I don't get the "...turn on Home Sharing..." screen is when I reset the AppleTV, AND restart iTunes. Somehow I don't think this is the way this should be working.
NOTE: In all of these scenarios, I've never had to re-login to Home Sharing on the iTune host. The credentials are working.
NOTE 2: I've completed ALL of the Apple recommended troubleshooting steps, and a good number of other ones suggested by this forum, including renaming the host computer, changing the Home Share Name, reissuing IP addresses, rewiring the network, opening or shutting off of all firewalls, etc.
Any assistance with this issue would be greatly appreciated.

My ipod will not let me put music on it, it takes forever to put music on and once ejected properly it says no music, i have tried reseting and restarting software but nothing, HELP! i need my music

my ipdo randomly deleted all its music so i had to start again adding it all, it took absolutly forever to do which was unusual and once it said completed and i ejected it it just says no music and full free space still, i tried reseting and rebooting the software and various other tips onling but nothing will let me put music on and actually keep it on my ipod.

Was the iPod previous synced to another iTunes library/computer?
Have you successfully synced from this iTunes library/computer before?
Do the songs play in iTunes?
Do you have the right boxes checked to sync?
iTunes: Syncing media content to iOS devices and iPod
Try syncing using the manual method

IPad no sim message keeps happening and needs to be reset and it works again

Even though sim inserted correctly will come up no sim and needs to be power reset and will work again. Happens every few days

I had this happen on my iphone 4s. Turned out there was a problem with the SIM card. I got a replacement from ATT which solved the issue.

Start Need For Speed over and watch the movie

I want to watch the live action scenes again but i cant figure out how to. I even tried deleting and reinstalling. any suggestions?

hold power button down along with teh vol + and - keys for 10 seconds, this will do a reset and see if any come back. If not then a call to support would be advised so RIM can get your device logs to see what the actual issue is.
http://us.blackberry.com/support/playbook-support/contact.jsp
Click here to Backup the data on your BlackBerry Device! It's important, and FREE!
Click "Accept as Solution" if your problem is solved. To give thanks, click thumbs up
Click to search the Knowledge Base at BTSC and click to Read The Fabulous Manuals
BESAdmin's, please make a signature with your BES environment info.
SIM Free BlackBerry Unlocking FAQ
Follow me on Twitter @knottyrope
Want to thank me? Buy my KnottyRope App here
BES 12 and BES 5.0.4 with Exchange 2010 and SQL 2012 Hyper V

Import settings needed for importing AVI and DVD into a DV project (FCE)

I'm new to FCE but have come from an Adobe Premiere background and I'm struggling a bit as I have a project that is half complete and I have exported from (windows) Premiere as an AVI (which I know I will have to put through Streamclip - btw couldn't export to quicktime for some reason).The rest will be mainly from DV camera and a small amount ripped from DVD using Aimersoft's dvd ripper. The problem is that I am trying to put it all in the same format so that the project runs smoothly but also keeping the number of conversions to a minimum. I am having trouble matching them all up and am using DV Pal as my main format.
I have 3 main queries:
1) When I import from DV camera it appears to convert it to a .MOV format (it lists that as a quicktime movie) using a DVC-PAL Codec, is this right?
2) I have imported my half complete AVI project through streamclip as a DV (DV25) PAL 720x576 16:9 clip but it needs rendering (it does play on the canvas though)...is there something I've missed?
3) I am trying to import the dvd parts through Aimersoft DVD Ripper and there seems to be no option for DV Pal. Do I need to import into another format and then use streamclip (once I get it working properly)? Or should I use another compatible app?
I have looked at handbrake but this seems to not support any of my needs for now. Your thoughts would be appreciated.

Hi David,
Thanks for your help. I do have a few more queries if anyone can help. I've overcome the issue of transferring mid project by writing the project back to tape which seems to work well. I am having a problem importing from DVD now though using streamclip, I have imported it to the MAC no problem at all. However the project is a DV (PAL) Anamorphic project and despite importing the dvd at 720X576 (Unscaled and DVPAL settings both at 4:3 and 16:9) the clips still need rendering. I have further tapes to import which are anamorphic so need to keep the project settings as they are. I feel I am so near yet so far!
Graham

Is virus protection need for the iMac, and if so, which product is recommended?

Not sure about virus protection of the i Mac, any recommendations?

Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.
1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to log in to it remotely. That threat is in a different category, and there's no easy way to defend against it.
The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."
The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't necessarily been tested by Apple, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)
Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
☞ It can easily be disabled or overridden by the user.
☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
Apple has so far failed to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. These failures don't involve App Store products, however.
For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is foremost a problem of human behavior, and no technological fix alone is going to solve it. Trusting software to protect you will only make you more vulnerable.
The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and Internet criminals. If you're better informed than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.
Software from an untrustworthy source
☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software.
☞ Rogue websites such as Softonic, Soft32, and CNET Download distribute free applications that have been packaged in a superfluous "installer."
☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.
Software that is plainly illegal or does something illegal
☞ High-priced commercial software such as Photoshop is "cracked" or "free."
☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission. All "YouTube downloaders" are in this category, though not all are necessarily malicious.
Conditional or unsolicited offers from strangers
☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.
☞ You win a prize in a contest you never entered.
☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.
☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.
☞ Anything online that you would expect to pay for is "free."
Unexpected events
☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.
☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.
☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.
I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it—not JavaScript—in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the left side of the address bar when visiting a secure site.
Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
7. Never install any commercial "anti-virus" (AV) or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.
Why shouldn't you use commercial AV products?
☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.
☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.
☞ Most importantly, a false sense of security is dangerous.
8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.
Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:
London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe
You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in every email attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.
The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.
9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.
10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It's as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

Frequent need for smu reset and restart

Similar Messages

Maybe you are looking for