Windows 7: why does it take forever to shut down and start up my computer?

Heeeey,

So for the last three weeks, the time it takes for my computer to shutdown has taken extremely long. It went from ten to twenty minutes, to three to eight hours. I've tried the following:

-using disk cleanup
-using ccleaner
-defragmenting my disks
-deleting useless files
-numerous scans by Microsoft security essentials and office depot tech support and mcafee antivirus
-chaanging the waittokillapptimeout apps (there are like 5 or 6 in there) to 1000
-adjust to best performance

My shutdown time has improved pretty rapidly, but when it has to install updates and shutdown it takes forever, or when I cant close an unresponsive program, shutdown and restarting times take
forever.

Welcome to Sevenforums! First, try going to start and typing msconfig and pressing enter. Then, go to the startup tab. Uncheck everything except your antivirus. Then, reboot your computer. If that doesn't work, run a scan with Malwarebytes Antimalware (when it prompts you abou the trial, click on decline): Download Malwarebytes Anti-Malware 1.61 - FileHippo.com

But what happens if It takes forever to reboot windude99? Oh and thanks for the welcome!

For Start-up.......
Startup Repair

Also try a System Restore to before the issue first occurred.

Then you should hold down hte power button to shut off if it doesn't do anything after 5 minutes.

Alright, thanks guys! I'll try what you all say. Anymore suggestions for me to try though?

Try these things then we'll go further.

Hiya. Work through these steps to Clean Up Factory Bloatware which can smother Windows 7 on low resource machines. Especially establish a Clean Boot to get all of the freeloaders out of startup.

I see you're running the most problematic AV we see here, MucAfee. I would uninstall it and install in it's place free Microsoft Security Essentials.

Once you've worked through all of these steps here are other Troubleshooting Steps for Windows 7
which will familarize you with the logs, system resources, hardware tests, and other steps to become the master of your PC.

Finally we have in residence here the top expert on tracing slow startups and shutdowns who will help you if necessary with Gathering a Startup, Shutdown, Sleep, Hibernate, or Reboot Trace - Windows 7 Forums.
But try everything else first.

Britton30 my system restore doesn't show Angy restore points to before that happened..

Trying startup repair now.

I cant download malwarebytes until I get my Internet problem fixed sadly..

Hopefully the tips you guys offered will work.