Microsoft KB Archive/286214

= &quot;STOP 0x7B&quot; Error Appears After Uninstalling Veritas Open Transaction Manager =

PSS ID Number: 286214

Article Last Modified on 9/22/2003

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The information in this article applies to:


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional

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This article was previously published under Q286214



SYMPTOMS
After you uninstall Veritas Open Transaction Manager, which is a component of the Veritas Backup Exec software, you may receive the following error message when you restart your computer:

STOP 0x0000007B INACCESSIBLE_BOOT_DEVICE

-or-

STOP 0x00000050 PAGE_FAULT_IN_NONPAGED_AREA

Switching to the last known good configuration does not help.



CAUSE
Although you have uninstalled the Open Transaction Manager software, there are still some registry keys present that are preventing your computer from starting successfully.



RESOLUTION
You need to manually remove the remaining references to the otman5 driver from the registry. Because your computer cannot start at this point, you need to install a parallel copy of Windows 2000 into a separate directory, and then use Registry Editor to modify the SYSTEM hive in the Windows 2000 registry.

For additional information about how to access the registry of the failed installation, click the article number below to view the article in the Microsoft Knowledge Base:

165748 How to Disable a Service or Device that Prevents NT from Booting

After reviewing article Q165748, open Registry Editor and make the following changes in the SYSTEM hive of the failed installation:

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

 Highlight the SELECT key and note the DEFAULT entry value (i.e.: 0x1) Locate the following key:

ControlSet00x\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318}

Where &quot;x&quot; is the value from the DEFAULT entry above.

Double-click the value UpperFilters in the above key, and remove the otman5 line. Locate the following key:

ControlSet00x\Control\Class\{71A27CDD-812A-11D0-BEC7-08002BE2092F}

Where x is the value from the DEFAULT entry above.

Double-click the value UpperFilters in the above key, and remove the otman5 line. If this is the only line in this value, you can remove the entire value from the right pane.



MORE INFORMATION
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: STOP 0x7B otman5 0x50 OTMAN5.SYS OTMAN4.SYS Stop 0x0000007B blue screen

Keywords: kb3rdparty kbprb KB286214

Technology: kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Pro kbwin2000ProSearch kbwin2000Search kbwin2000Serv kbwin2000ServSearch kbWinAdvServSearch

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