Battle for sleep my PC

Hi Dears.
It's about two weeks which i can't get my PC to sleep.
Whenever i make it sleep, It immediately wakes up again.
I checked the bios, the power management of windows, All my USB sticks. but it's steel get awake after i put it to sleep.
Help me please.
thanks in advance.

Welcome
Make sure your nic card cannot wake computer.
Power Options and Sleep Mode Problems - Vista Forums
Equally appropriate for Windows 7

richc46 said:

Welcome
Make sure your nic card cannot wake computer.
Power Options and Sleep Mode Problems - Vista Forums
Equally appropriate for Windows 7

Click to expand...

Thank you so much dear. it helped a lot.
You know what? My enormous problem was a tiny bluetooth dangle!!!!!!!!!!!!!!!!

Glad to help
Its those little things that we miss. The big things we recognize
Enjoy the computer and good luck