THE CD DRIVE OR THE DVD DRIVE DOES NOT WORK AS EXPECTED

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Symptoms

The CD drive or DVD drive on your computer no longer works as expected when the computer restarts after you complete one of the following actions:

You tăng cấp a computer lớn Windows Vista.

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You install Windows Vista Service Pack 1 (SP1).

You install or uninstall applications that have a CD/DVD filter driver.

Cause

This problem may occur for one of the following reasons:

The filter drivers in the CD & the DVD storage stack are not migrated successfully khổng lồ Windows Vista.

You uninstalled CD software that does not correctly remove itself in the registry.

You installed software that adds filter drivers in the CD & the DVD storage stack that interfere with existing filters.

Resolution

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to lớn back up and restore the registry, click the following article number to view the article in the fastmeloxicam.com Knowledge Base:

322756 How lớn back up và restore the registry in Windows

To resolve this problem, remove the affected filter drivers. To do this, follow these steps:

Click Start , type regedit in the Start Search box, và then click regedit in the Programs list. If you are prompted for an administrator password or confirmation, type your password or click Continue.

Locate & then click the following registry subkey:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass4D36E965-E325-11CE-BFC1-08002BE10318 Warning There can be many instances of the registry subkey that is mentioned in step 2. You must make sure that you are in the appropriate registry subkey before you change the UpperFilters và the LowerFilters values. Lớn verify that you are in the appropriate registry subkey, make sure that the mặc định value is DVD/CD-ROM and the Class value is CDROM.

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If you see UpperFilters in the pane on the right side, right-click UpperFilters, & then click Delete.

Click Yes to confirm the removal of the UpperFilters registry entry.

If you see LowerFilters in the pane on the right side, right-click LowerFilters, & then click Delete.

Click Yes to lớn confirm the removal of the LowerFilters registry entry.

Exit Registry Editor, and then restart the computer.

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Hardware & software vendor liên hệ information

More Information

For more information about the filter drivers that may be loaded in Windows Vista, run the DevCon program. To vì this, follow these steps:

Click Start , type cmd in the Start Search box, right-click cmd in the Programs list, and then click Run as administrator. If you are prompted for an administrator password or confirmation, type your password or click Continue.

At the command prompt, change the directory to the directory lớn which you extracted the DevCon files.

Type devcon stack gencdrom, & then press ENTER.

Information that resembles the following appears:

IDECDROM_____CDRW121032______1.085&60546BC&0&0.0.0 Name: CDRW121032 thiết lập Class: 4D36E965-E325-11CE-BFC1-08002BE10318 CDROM Upper filters: Controlling service: cdrom Lower filters: 1 matching device(s) found.

References

For more information about a similar problem that you may experience on a computer that is running fastmeloxicam.com Windows XP, click the following article number lớn view the article in the fastmeloxicam.com Knowledge Base:

314060 You can no longer access the CD drive or the DVD drive, or you receive an error message after you remove a CD recording program or a DVD recording program in Windows XP: "error code 31"