Why do I keep losing my computer settings?

First of all, I do not know much about computer.
Can anyone tell me why my computer settings (for example desktop arrangement) disappear once in a while? (Nothing saved in the hard disk gets lost.) Is it because of some type of virus?
Thank you.

所有跟帖： 

• possibly your profile is corrupted -ppzcgg- ♀ (26 bytes) () 01/07/2007 postreply 17:01:42

• 回複：Why do I keep losing my computer settings? -喬老老爺- ♀ (43 bytes) () 01/08/2007 postreply 08:06:09

• he is talking about a different matter -ppzcgg- ♀ (142 bytes) () 01/08/2007 postreply 11:22:32