What do the following win7 safe mode?

You may even xp do not know, but you'd better look win7 because this has started to become mainstream.
In fact, many times without reloading system problems, even if the Ghost is very convenient, you should also consider that the life of your computer's hard drive.
Win7 and winXP into the safe mode operation similar
method: before boot into Windows startup screen press F8;
Method two: hold down the CTRL key while the computer starts. There will be multiple operating system boot menu, this time you just need to select "SafeMode", you can go directly to safe mode.
Windows7 operating instructions under Safe Mode
1. Delete stubborn files to delete some files in Windows normal mode or clear the Recycle Bin, the system may prompt "File is being used can not be removed," this happens we can in safe mode under to remove it. Because in Safe Mode, Windows will automatically control the release of these documents.
System Restore in Safe Mode 2. If your computer can not start now, only in safe mode, then you can restore the system in safe mode. After entering the safe mode Click the "Start" → "All Programs" → "Accessories" → "System Tools" → "System Restore", open the System Restore Wizard, and then select "Restore my computer to an earlier time" option, click "Next" button, click bold displayed on the calendar date selection system restore point, click "Next" button for system restore.
Killing the virus in safe mode 3. Now anti-virus software update speed have been behind the pace of the virus, too easy to your computer will be infected. But there are many antivirus could not clear the virus in Windows, and antivirus software and can not run under dos. This time we can start in Safe Mode, Windows system will only load the necessary drivers, so that you can completely cleared the virus.
Group Policy lock In fact, Windows Group Policy is lifted restrictions by loading a specific registry key to achieve 4. safe mode, but in safe mode will not load the limit. Hold down the F8 key after the restart boot, multi-boot menu window opens, select "Safe Mode with Command Prompt." After entering the desktop, at the boot command prompt "C: WindowsSystem32XXX.exe (you start the program)", start the console, and then follow the above operation to lift the restrictions, the final restart normal login system to unlock. Note: Group Policy, many restrictions are in safe mode could not be effective, if met could not lift the restrictions, may wish to enter the next to find a solution.
5, repair system failures If Windows is running up and not very stable or not start, this time do not just reinstall the system, try restarting your computer and switch to safe mode to start, and then re-start the computer, the system is not already restored normal? If there is a system failure due to the problems caused by the registry, this method is very effective, because it can automatically repair registry problems to start Windows in safe mode, start Windows in safe mode successfully, the general would be in normal mode (Normal) started.
6, restore system settings If the user is installing new software or change some settings, cause the system to not start, also need to enter safe mode to resolve, if it is caused by new software installed, please in safe mode uninstall the software, if is to change some settings, such as display resolution is set beyond the display range, resulting in black screen, then enter safe mode can be changed after the return, as well as the screen saver with a password on the "start "menu, the password is forgotten, can not lead to the normal operation of the computer, you can also enter safe mode to change.
7, since the launch of malicious programs or services uncovered if the computer some unintelligible error, such as unable to get online, according to conventional thinking and find no problem, you can start to look at safe mode with networking, if here it can on, then a certain self-start programs or services affect the normal network connection.
8, incompatible hardware detection XP As a result of digital signature style driver model, the detection of a variety of hardware strict than in the past, so some devices may not be used under normal driving state. If you find in normal mode XP does not recognize the hardware, you can press F8, and then choose to enter Safe Mode at startup, to detect new hardware in safe mode.
9, uninstall the incorrect driver General of the driver, does not apply if your hardware, you can uninstall the original XP drive through. But the video card and IDE hard disk drive, if installed wrong, there may be a GUI interface into the crash; some of the motherboard ULTRADMA patch too, as Windows is to read the memory and disk page file adjustment of status of your computer at any time, so a hard disk drive there are problems on the collapse of the system immediately. At this point how to do it? In some cases, difficulties in maintaining disable the administrator account can cause. For example, in a domain environment, when used to establish a secure channel connection fails due to some reason, if no other local administrator account, you must restart the computer in Safe Mode to fix the problem causing the connection status interrupt. If you try to re-enable a disabled administrator account, but the current administrator password does not meet the password requirements, you can not re-enable the account. In this case, the optional members of the Administrators group must set the password for the administrator account through the "Local Users and Groups" user interface.