Click on Start, Run, and type regedit and press Enter Click on the plus signs (+) next to the following folders
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
{4D36E965-E325-11CE-BFC1-08002BE10318}
This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
Upper Filters
Lower Filters
Upper Filters.bak
Lower Filters.bak
If any of the above keys shown in step 4 are listed, right-click on them and choose Delete After deleting the keys, close the registry editorReboot your computerOpen My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.hope this helps
When you boot up to the log in screen type in administrator as user if you cant log in
During the boot up process you will see on the screen for a short amount of time a certain key to enter set up press and hold that key to enter set up BIOS scroll to set user password or supervisor password you can change or remove the password from there if you are still unable to change your password you might download
http://download.cnet.com/%7Bvalue=http://www.download.com/ubcd4win/3000-2086_4-10550208.html
UBCD4Win is a bootable "live" CD which contains software that allows you to change paswords repair/restore/diagnostic almost any computer problem also has a bios reset tool which remove your password and BIOS password although you will have to use a computer with an internet connection you will have to burn it to a disk as an iso then change your firtst boot device to cd During the boot process you will see on the screen to press a certain key to enter setup Press and hold that key during the boot up process to enter BIOS the scroll down to advanced bios features press enter change your first boot device to cd press escape then press f10 to save to cmos to restart (note after you have removed the password you must go back and change the first boot device to your hard drive) Hope this helps
Click on Start, Run, and type regedit and press Enter Click on the plus signs (+) next to the following folders
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
{4D36E965-E325-11CE-BFC1-08002BE10318}
This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
Upper Filters
Lower Filters
Upper Filters.bak
Lower Filters.bak
If any of the above keys shown in step 4 are listed, right-click on them and choose Delete After deleting the keys, close the registry editor Reboot your computer Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone. Hope this helps if your computer came with a motherboard disc the drivers could be on it Click start control panel administrive tools computer management device manager scroll down cd-dvd rom drives you might see a yellow question mark ? right click you will have options to update driver hope this helps
Click on Start, Run, and type regedit and press Enter Click on the plus signs (+) next to the following folders
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
{4D36E965-E325-11CE-BFC1-08002BE10318}
This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
Upper Filters
Lower Filters
Upper Filters.bak
Lower Filters.bak
If any of the above keys shown in step 4 are listed, right-click on them and choose DeleteAfter deleting the keys, close the registry editorReboot your computerOpen My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.hope this helps
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
{4D36E965-E325-11CE-BFC1-08002BE10318}
This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
Upper Filters
Lower Filters
Upper Filters.bak
Lower Filters.bak If any of the above keys shown in step 4 are listed, right-click on them and choose DeleteAfter deleting the keys, close the registry editorReboot your computerOpen My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.hope this helps
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