Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
Hotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
PrerequisitesNo prerequisites are required.
Restart requirementYou must restart your computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Windows Server 2003, 32-bit editions
Date Time Version Size File name
21-Oct-2004 15:51 5.2.3790.224 15,360 Mcd.sys
21-Oct-2004 15:51 5.2.3790.224 20,480 Tape.sys
Windows Server 2003, 64-bit edition
Date Time Version Size File name
21-Oct-2004 16:51 5.2.3790.224 38,400 Mcd.sys
21-Oct-2004 16:51 5.2.3790.224 55,808 Tape.sys
Add the Persistence registry entry after you install the hotfixWarning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
To enable this hotfix after you install it, add the Persistence registry entry to the following registry subkey, and then set the registry entry to 1:
To enable the hotfix, follow these steps:
- Click Start, click Run, type regedit, and then click OK.
- Locate and then click the following registry subkey:HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Tape
- On the Edit menu, point to New, and then click DWORD Value.
- Type Persistence, and then press ENTER.
- Right-click the Persistence registry entry, and then click Modify.
- Type 1 in the Value data box, and then click OK.
- Quit Registry Editor.
- Restart the computer.
- This fix requires that Tape.sys is being used as the tape class device driver. This fix will have no effect if your backup solution uses a third-party tape class driver.
- This fix requires that each tape drive must have an electronic embedded serial number. Any tape drive that does not have a serial number will be assigned a non-persistent symbolic name.
Article ID: 873337 - Last Review: 29 Mar 2017 - Revision: 3