To correct damaged system files , try running System File Checker.
If XP, based on an on board back-up copy of XP(read only) used to correct files. If copy is corrupted, it may tell you to insert XP or SP2/3(if patch applied) disk or to indicate location of SP2/3 info to get new,
clean copy inserted. Good to have disk at hand. To Run SFC:
Left click on My Computer(open)
Right click on "C" or your OS drive if another letter.
Left click Properties and then click Tools Tab.
Left click on "Error Checking"> Check Now.
Left click to enter check mark in "Auto Fix System File Errors"
Left click on "Start".
Computer will have to reboot to begin repairs. Restart computer.
Just leave alone (you're locked out anyway) 'til process finished.
Hopefully this will force it to recognise you primary desktop.
Can't do any harm. Good Luck!!
I have a problem with my desktop. Upon startup, the computer loads everything, including the desktop and the task bar, but it won't let me click any of the icons on my desktop or drag and select. In order to return my desktop to a usable state, I have to end process "explorer.exe" and then start it again.
The computer is running xp and is a dell dimension 5150.