Error Message for Windows XP

Hello everybody, I need little help. I see this error message in my Windows. I don’t understand about this error.
"Error Message for Windows
Lookup Error code List Explorer Help About
Specify an MS Windows error code number in the Error Code box.The error code you enter will be described in the text windows below
Error code 32
Description: The process cannot access the file because it is being used by another process.
Save windows location on the desktop
Keep windows topmost on the desktop"
So I need support for solve this error problem. If anyone knows solution then shares here by your answer.
Please help me to solve this problem.
Thanks

