Running Disk Defragmenter on Vista Issue

[JelloStyle408]

I have a problem on Vista Home Premuim, my problem is everytime I put my computer on Disk Defrag and I leave it on in the morning then when I come home in the afternoon, I find my computer on hibernate or standby. When I turn on the screen, my computer like paused or stop the defragmentation. Meaning it started to defrag for awhile then stop, but never finish.

How do I fix this issue so I can run disk defragmenter without having my computer go standby or hiberating when I leave it on for several hours?

 

[sirkillalot]

im not sure how to get there with vista cause i never used it but it should be similar........
is your hibernate on if so turn off, go to control panel power options hibernate untick.
Also check power schemes and go -never on system stanby