If you have installed Windows 7 and your DVD drive is not recognized, and marked with a yellow mark in device manager you are unable to use your DVD drive, follow this guide to fix this common Windows 7 problem.

Windows can not control the digital signatures from the drivers that are required to install this unit (Code 52)

A solution to this problem that have already helped several users is to press f8 during startup and pick startup without digital signing. This however is not a real solution but rather a workaround and if you want to fix this problem for good, follow the simple steps below.

Solution 1:

1. Pres down the Windows button and the R button, write regedit and press enter or OK.

2. Find the registry key HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \ (4D36E965-E325-11CE-BFC1-08002BE10318)

3. In the right window, right click on UpperFilters and the pick delete.

4. Confirm the delete by pressing Yes.

5. In the right window you right click again on LowerFilters and once again delete.

6. Confirm the delete

7. Restart your computer and you are all done.

Solution 2:

Click on Start -> All programs -> accesories -> Right click on Command Promot -> run as administrator.

Inset the follow line and press enter.

bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS

This should solve the DVD drive problem in Windows 7. Good luck.

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written by Mark, February 06, 2010

Very hot tip! Thanks a bunch!

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