No response(crash) when entering sleep mode or restarting

Hello,

often, when I want to put computer into sleep mode or sometimes when I restart it, procedure doesn't finish, display usually turns off, but computer is still running. The only option is to turn it off manually by holding power button.

After restarting I have a lot of (15) errors in system log:

A timeout (30000 milliseconds) was reached while waiting for a transaction response from the XXXXXX service.

XXXXXX = iphlpsvc, Schedule, SENS, BITS, CertPropSvc, EapHost ... etc.

Several days ago I have updated my bios and some drivers, so I suspect that the reason may be some driver.

I have dell latitude e4310 notebook running Win7x64 SP1.

If the problem is in driver, how can I find out which driver is problematic? Or do you have any other ideas?

Thanks in advance

Post it following the Blue Screen of Death (BSOD) Posting Instructions.

There may not be any crash dumps, but it will give us some other information which will help us to help you better.