Why won't my computer turn on or off quickly?

If your computer seems to shut down slowly (or not at all) or start up slowly, or if it doesn't enter power-saving modes, it's possible that a program or device driver is interfering with Windows power settings. You can use Performance Information and Tools to try to detect these programs or device drivers.



To check for performance issues

1.Click to open Performance Information and Tools.
Control Panel\All Control Panel Items\Performance Information and Tools


2. In the left pane, click Advanced tools.

3.In Advanced Tools, under Performance issues, click any issues that are listed.

4.Read the information in the dialog box that appears to learn which programs or drivers are causing problems.



If a program or driver prevents your computer from turning on quickly

You can try the following tasks to fix the problem:
Manage the programs that run at startup. Some programs start automatically when you start Windows. Too many of these programs opening at the same time can slow down your computer. To disable these programs from startup and improve performance, use Windows Defender. For more information, see Stop a program from running automatically when Windows starts.



Check with the manufacturer of the program or driver for an update. A newer version of the program might include a resolution to the problem.



If a program or driver prevents your computer from turning off quickly

You can try the following tasks to fix the problem:
Close the program before shutting down. It's possible that the problem occurs only if the program is running. Try closing the program before shutting down Windows, and then see if your computer turns off properly.
Check with the manufacturer of the program or driver for an update. A newer version of the program might include a resolution to the problem.



If these options don't solve the problem, then the program or driver might be incompatible with Windows. If you installed the program or device yourself and you no longer use it, consider removing the device, or uninstalling the program or driver.

In windows 7 you can also Generate a System health report.
This comes in handy to let you know how your PC is doing. If you do one you first get your PC and do one every few motnhs and then you can see how and if your computer is going to crash
you can find it here
Control Panel\All Control Panel Items\Performance Information and Tools\Advanced Tools

This will run for 60 seconds or longer depending on your system.

In most cases 60 secs is default.

You can check the warnings and follow the links with-in the warnings, Also you can check memory, hard drive and pretty much your whole Computer.
 
Good Luck
Thanks
MD4URPC.com