為什麼我部電腦不能系統還原?

You will have to enable it before you can use it later.
And it is only available in Win XP. Are you using other system??

2006-11-14 01:27:03 補充：
Sorry I don't have Chinese Typing at Home.
pls check:
Start,All Programme, Assessories,System Tool,System Restore
Then choose System Restore Setting on the Panr on the Left Hand Side
And Make sure that the check Box for the System Restore is uncheck.