cd/dvd drive disappearing in xp/vista
I work as a computer repair tech and i’ve noticed a recurring problem with cd/dvd drives in Windows XP and Vista disappearing from the my computer menu. Now rather than to restore the OS, wasting time hunting down drivers, or replace the drive you can try to fix the problem by editing the registry keys.
1. In XP just go to start run and type in “regedit” and in Vista just type “regedit” in the search box.
2. From there maximize the HKEY_LOCAL_MACHINES
3. SYSTEM
4. CurrentControlSet
5. Control
6. Class
7. {4D36E965-E325-11CE-BFC1-08002BE10318}
Now look in the right panel and find “Upperfilter” and “Lowerfilter”, click on each “filter” and hit the delete key. You will be prompted after each filter to confirm, just hit yes and then restart the computer after both filters have been successfully removed.
If after doing this the drive is still not working you’re either looking at a bad cd/dvd drive or possible a bad motherboard. One way to test this is when the BIOS screen comes up on the computer select the option to load the boot menu and attempt to boot from the cd/dvd drive. You’ll need a bootable cd such as a Windows installation disk or you could use something like Memtest or Hitachi Drive Fitness Test
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