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...the first three times I clicked Windows Explorer to find the files, it "generated errors" and closed explorer.exe.
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Andy, you might have some hard disk fragmentation going on also in your computer. Windows NT, 2K, and XP, all use hard disk space very poorly fragmenting fast. When the hard disk gets badly fragmented you will see general slowness, file corruption, lots of system error's, and if it gets bad enough freezing and even blue screening.
You can check the fragmentation on your drive by...
1. Right click on your C drive and choose properties.
2. Left click on the Tools tab.
3. Left click on Defragment Now.
4. Choose your C drive in the upper window by left clicking on it once to highlight it.
5. Left click on Analize.
The aplication will give you a report of your drives condition. Always ignore it's recomendation because it's seldom right. Use your eyes. If you see more then just a little bit of red in the chart or you see a picket fence effect like a lot of little lines instead of solid blocks of color then it's time to run a defrag.
In the same window click defrag. It will defragment your drive and give you a finish report when it's done. Make sure you shut down all the other applications you're running before running the defrag so it does a better job. Also it's a good idea to check this every 3 to 4 weeks to keep your computer optimised.
When the fragmentation is kept low your computer will run faster with far less errors.
Hope this helps.