Shortened battery life on an AMD Kabini platform based computer running Windows

To resolve this issue, install update rollup 2955164 in Windows 8.1 or Windows Server 2012 R2, or install the hotfix that is described in this article.

Update information

For more information about how to obtain update 2955164, click the following article numbers to go to the articles in the Microsoft Knowledge Base:

Hotfix information

A 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.

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, submit a request to 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 website: 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.

Prerequisites

To apply this hotfix, you must have Windows 8.1, Windows Server 2012 R2, Windows 8, or Windows Server 2012 installed. Additionally, you must first install the update 2919355 on Windows 8.1 or Windows Server 2012 R2. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8.1, Windows Server 2012 R2, Windows 8, and Windows Server 2012 file information notes

Important Windows 8.1, Windows Server 2012 R2, Windows 8, and Windows Server 2012 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

• The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

  Version	Product	Milestone	Service branch
  6.2.920 0.16xxx	Windows RT, Windows 8 and Windows Server 2012�	RTM	GDR
  6.2.920 0.20xxx	Windows 8 and Windows Server 2012	RTM	LDR
  6.3.960 0.17xxx	Windows RT 8.1, Windows 8.1 and Windows Server 2012 R2	RTM	GDR

• The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 8.1, Windows Server 2012 R2, Windows 8, and Windows Server 2012" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 8

For all supported x64-based versions of Windows 8 and Windows Server 2012

For Windows RT

For all supported x86-based versions of Windows 8.1

For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

For Windows RT 8.1

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

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: Third-party information disclaimer

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Additional file information for Windows 8.1, Windows Server 2012 R2, Windows 8, and Windows Server 2012

Additional files for Windows RT

Additional files for x86-based versions of Windows 8

Additional files for x64-based versions of Windows 8 and Windows Server 2012

Additional files for Windows RT 8.1

Additional files for x86-based versions of Windows 8.1

Additional files for x64-based versions of Windows 8.1 and Windows Server 2012 R2