Windows XP automatically logs off fault handling when powered on

Failure phenomenon: XP A boot automatically logoff, simply can not enter the system, Safe mode, the last time the correct configuration can not enter, change the user name also does not go to Windows system.

Because C disk has important software, cannot format system disk, use CD-ROM system to start machine, Discover system disk: Windowssystem32 under IMG.EXE, IGW. EXE, LYLOADMR. EXE and other virus downloader. But userinit.exe files are missing. It can be concluded that the virus has destroyed the normal userinit.exe.

Resolution process:

The system disk under normal machine: Windowssystem32userinit.exe copy to the corresponding catalogue of the disease machine; Reboot the machine, although very slow, but can enter the system. First turn off System Restore, upgrade anti-virus software, the overall anti-virus. (This machine killed nearly hundreds of Trojan virus, a huge wooden horse), and then manually remove the individual kill soft tips not kill the virus body, such as: LOADER.EXE. Open Registry Editor to remove virus-loaded startup items. Use the Windows Cleanup tool to clean up garbage files. At this point the system starts properly. Check that the files under Windowssystem32 are missing. If so, it can be copied from the normal machine. At this point, the machine is normal. The original software and drivers are back to normal. Here it is easy to solve the problem that Windows automatically log off when it is powered on.