Sounds like either some major installation problem, a virus or spyware, or a hardware problem.. When did the problem first start happenening? What change(s) were made just before the reboots, etc began occuring?
Regardless, one of the first steps is to start the computer in safe mode:
If you have to, cancel the scan disk when it first begins to run (it tells you what to enter to exit it)
In order to run in safe mode, wait for the initial info black screen to give cpu/memory, etc info, then hit F8 until the machine gives a screen that asks you how you want to boot, select safe mode, and boot into Windows - Safe Mode. Basically, it will not load any of the services/startup stuff that is not 100% necessary for operation. This is good for checking to see if there is any malicious software causing it, b/c this will pretty much stop 100% of any malicious stuff from running. Of course, the screen won't be as pretty, as those drivers don't get initiated either.
Once in safe mode, you can do whatever checks you need to do. If it will boot into safe mode with no problems, then try doing a full system scan with at least one antivirus program.. If don't have one, you can download a free version that works pretty much as well as commercial ones. either of these two should work (I recommend AVG):
AVG antivirus free edition from
Antivir Personal Edition from
Also, scan for spyware/adware with these:
Ad-aware se personal
Spybot Search and Destroy
And install Spywareblaster to prevent future installations of spyware/adware
You can download all of these from
or
in no time at all if you have broadband, and not terribly long for dial-up (shouldn't, at least)
Also, try scanning your system registry with a registry tool, such as RegScrubXP. This program will not work on Windows older than 2000 (to my knowledge). You can get it from the same 2 websites listed above.
If you have Norton SystemWorks, run all checks it has, such as the One button checkup, win doctor, and virus scan.
These are some options to try, b/c any of the problems that these can fix could cause the problem.
One other thing to check is this: Make sure that if you have an add-on video/display adapter installed that it is "seated" correctly - basically is it snug and installed correctly? Also, make sure you have the most current drivers for your adapter... most commonly
or
is where you would get your drivers, depending upon which manufacturer's chipset you have.
If you know of any specific changes you made, whether hardware or software, or know of anything you did on your computer just before this began happening, post that here for further suggestions.
Stephen
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"Jesus saith unto him, I am the way, the truth, and the life:
no man cometh unto the Father, but by me." John 14:6 KJV