If you are not familiar with the registry, you can download the following registry keys that I just created. They will remove your UpperFilters and LowerFilters that can be damaged.
http://windows7themes.net/download/registry/deleteupperfilters.reg
http://windows7themes.net/download/registry/deletelowerfilters.reg
But you can also do it manually:
1. Open the registry:
http://windows7themes.net/pics/regedit-internet-protocol.jpg
2. Uncollapse [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}]
Tip: Simply mark the folder “Class” and then enter “{4D36E965″ to instantly jump to the correct registry key.
Important: Double-check that you are editing the correct registrysubkey! To do that, compare the registry keys “(Default)” and “Class”, they should be set to DVD/CD-ROM drives and CDROM.
3. Delete the key “UpperFilters” and LowerFilters:
http://windows7themes.net/pics/windows-7-registry-delete-UpperFilters.jpg
If you don’t see the registry key “LowerFilters” then this method won’t help you and you should proceed to the following
ou should try to disable integrity checks via command prompt. Disabling integrity checks means that Windows 7 will not check for digitally signed drivers.
Run cmd.exe (command line utility) as admin:
http://windows7themes.net/pics/run-cmdexe-as-administrator-in-windows-7.png
2. Enter the following line:
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
Information about DVD Drive Filters
Download DevCon, which is alternative to the Windows 7 Device Manager
http://support.microsoft.com/kb/311272
1. Open up cmd.exe as admin:
http://windows7themes.net/pics/run-cmdexe-as-administrator-in-windows-7.png
2. Switch to the folder where you extracted DevCon to. Simply enter:
cd X:\path_to_devcon\i386 (replace X and path_to_devcon with your hard drive and the correct path)
http://windows7themes.net/pics/cd-devcon-windows-7.JPG
3. Enter the command “devcon stack gencdrom”:
http://windows7themes.net/pics/devcon-stack-gencdrom.JPG
This is my output:
c:\devcon\i386>devcon stack gencdrom
SCSI\CDROM&VEN_ELBY&PROD_CLONEDRIVE&REV_1.4\1&2AFD7D61&0&000000
Name: ELBY CLONEDRIVE SCSI CdRom Device
Setup Class: {4d36e965-e325-11ce-bfc1-08002be10318} CDROM
Class upper filters:
SiRemFil
Controlling service:
cdrom
SCSI\CDROM&VEN_VMBOT&PROD_567GPM3&REV_1.03\5&36E5972&0&000000
Name: VMBOT 567GPM3 SCSI CdRom Device
Setup Class: {4d36e965-e325-11ce-bfc1-08002be10318} CDROM
Class upper filters:
SiRemFil
Controlling service:
cdrom
2 matching device(s) found.
It will list all matching devices and will tell you everything you need to know about DVD Rom Filters.
My virtual drives are using the UpperFilter SiRemFil (Filter driver for Silicon Image SATALink controllers)