Every time I start to search my files, my computer locks up and I have to reboot. Please help if you can. Thank you Be Kind

Yuck. Not a good problem. There may be something corrupted with the file allocation table. Try to run a disk check (on the C:\ properties and also try to run a defragmentation on the disk. You might have better luck with this question in a Windows newsgroup, though. This is an Exchange newsgroup.