Press the F8 key while the system is booting. Then choose safe mode.
Safe mode
Yes, you can. You have to boot your system in the Safe mode with network support.
f8 then choose the safe mode option
During system boot, press F8 and then select Safe Mode in the menu
close it then re-open ney
Safe Mode is a diagnostic startup that takes place when the computer suffered an unexplained crash. While in Safe Mode, only the most basic drivers are loaded. Safe Mode is used to diagnose problems with the operating system.
You will need to do a system restore. Restart your computer in safe mode (reboot and press the F8 key continuously until you get the option to start in safe mode). When in safe mode, use system restore to restore your system to just before you installed that Service Pack.
F8
go to system preferences
Safe mode is used to diagnose trouble with the computer's operating system. It only loads in the most basis services and drivers.
when a vehicle is in safe mode, there is a problem somewhere in the system that has gone into safe mode. safe mode is made to get you safely off the road and out of traffic, not to continually drive. to remove from safe mode , the problem must be fixed. if not fixed, at some time you will find yourself stuck somewhere and then repairs can be more costly than what they are now.
If you close MW3 down by using task manager, when you try to open run MW3 again it will give you the option to run in safe mode.