Bootup Troubles

I have been having problems booting up my computer on the first try lately. I have been getting a variety of error messages before my computer ever gets to the Windows startup screen. The last 2 I have gotten are as follows:

1) "Boot Failure, Reboot and select proper boot device or insert boot media in selected boot device, press any key when ready"

I pressed a key a number of times but I kept getting the same message. I finally just hit the reset button and everything started up fine like nothing happened.

2) "Windows could not stary because the following file is missing or corupt: \windows\system32\config\system, You can attempt to repair this file starting windows setup using the original setup CD-ROM, Select 'r' at the first screen to start repair"

I hit 'r' and everything started up fine.

Attached you can find my computer specs. Any help is greatly appreciated. Thank you in advance.

 

The last error is a registry error. Here is the MS Article on how to repair your sytem registry.

How to recover from a corrupted registry that prevents Windows XP from starting

After fixing the registry, we can deal with any other problems you may be having.