I have a Dell 1525 running Microsoft Vista Home Premium and McAfee security software. Yesterday at around 2000 I received an on-screen notification from McAfee that protection had been upgraded and a restart was required. Given the option of Restart now or Restart later I opted for Restart now. Since then the computer has been stuck with the blue Vista screen with the timer symbol and "Shutting Down".
There was nothing in the McAfee message that made me at all suspicious and such automatic restarts have worked for me in the past.
After about an hour, I concluded that the computer had hung and switched off. When I switch on, I get "Resuming Windows" followed quickly by the screen described above. I have since disconnected absolutely everything from the computer and switched on again: same result as above.
Grateful for advice on where I can go from here. Since I have not backed up the data on it, something short of reformatting the hard drive would be appreciated. If you are unable to help me solve the problem, can I trust any of the on-line diagnosis services eg iyogi? Are there any you would recommend?
Apologies if this is covered in a FAQ somewhere. I am working from a library computer and shall shortly have to go off-line. Hope to return later today to check out your responses.
Thanks in advance.