Windows Server 2008 R2 starts into Windows Recovery Environment

Symptoms

This issue occurs on some Unisys or NEC servers that are running Windows Server 2008 R2 Service Pack 1 (SP1) after you install Microsoft security advisory: Availability of SHA-2 code signing support for Windows 7 and Windows Server 2008 R2: March 10, 2015 on the server.

Note In this situation, you can still start Windows successfully if you insert a bootable DVD (such as a Windows installation disc) in the DVD drive, but don't actually select to start from it. 

Cause

This issue occurs because of a firmware error on a specific server hardware. The firmware error is caused by a change to the Windows boot loader.

Resolution

To fix this issue, we've released a hotfix for Windows Server 2008 R2. Even though this issue has only been observed in Windows Server 2008 R2, the hotfix also applies to Windows 7. 

Hotfix information

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.


A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get 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 don't 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 website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.


Prerequisites

To apply this hotfix, install Service Pack 1 in Windows 7 or Windows Server 2008 R2.

Registry information

To use the hotfix in this package, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix doesn't replace a previously released hotfix.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

References

See the terminology that Microsoft uses to describe software updates.

More Information



Third-party information disclaimer

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). Be aware that dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time bias. The dates and times may also change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2
Additional file information ERROR: PhantomJS timeout occurred