Over the last couple of days my pc has taken about 3 - 4 hours to boot up. When it eventually works, I noticed the clock was wrong. I decided to change the internal battery and hoped that sorted out the problem. It hasn't made any difference to the start up time at all. I've been into the bios/cmos and reloaded the default settings and, again that's not helped. I changed the boot sequence to start off my c drive and that's where I am now. No difference. Any help ??
Have you looked at Event Viewer. Plus you could go to Run and type msconfig go to startup tab look at how many programs that start at boot up, You can reduce these by taking out the tick. You can re-enable at any time. Do not stop AV or Firewall running.
But my Guess is Your Anti-Virus is checking all your files every time the computer starts up. You need to check this and stop it doing it, Set it to Manual Check
Start/run and type MSCONFIG and select startup,now untick everything except your Antivirus and Firewall and if you have a realtime antispyware app running ..leave this ticked also and reboot. Hopefully this may be a startup program causing the problem.
If not,possibly psu/cpu/or even harddrive problems.
I'm running xp pro, windows firewall and spybot search and destroy. Anti virus is AVG free edition. I've done MSCONFIG as suggested but that hasn't made any difference. Could the problem be in the bios start up configuration ? Currently I'm running at c,cdrom,a ( I have nor a drive which was the floppy disk but that has been removed.