help: my PC can not hibernate

When I turned the PC on at the very beginning after bought, the hibernate button was there. Then I installed some softwares for my work, and remember the hibernate button was still there. But not, that button is gone, it just has sleep, shutdown, does not have hibernate button. The only thing I remember is that I did an C:/ partion clean up to clean the unnessary files to make space, and I remember there is two things called hibernation something. I delete that files too. I do not know if it is because of that. If yes, anyone know how to reget that function?
My PC is lenovo Y430. Thanks!
nice weekend!

所有跟帖： 

• http://support.microsoft.com/default.aspx?scid=kb;EN-US;928897 -0505ch- ♀ (28 bytes) () 12/06/2008 postreply 16:27:46

• 多謝0505ch的回帖，按照你的方法，已經成功解決了問題！多謝！ -whiteheart- ♂ (0 bytes) () 12/07/2008 postreply 00:44:21

• 又知道多一點~~ -阿尤- ♂ (0 bytes) () 12/07/2008 postreply 17:02:02

• 在鍵盤上放幾瓶大劑量的安眠藥，馬上見效。 -π- ♂ (136 bytes) () 12/06/2008 postreply 18:35:21

• 這樣也可以阿~~~安眠藥到那裏下載？~~~ -阿尤- ♂ (0 bytes) () 12/07/2008 postreply 17:04:22

• 按shift鍵 -tryToDoIt- ♂ (64 bytes) () 12/09/2008 postreply 02:49:49