To resolve this issue, install the update that is described in this article.
Update information
How to obtain this update
Windows Update
This update is available from
Windows Update.
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Note The update for Windows RT 8.1 can be obtained only from Windows Update.
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file. Prerequisites
To apply this update, you must be running Windows 8.1 or Windows Server 2012 R2.
Registry information
To apply this update, you do not have to make any changes to the registry.
Restart requirement
You may have to restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
File information
The global version of this update 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.
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are
listed separately in the "Additional file information" 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 8.1
| File name | File version | File size | Date | Time | Platform |
|---|
| Ks.sys | 6.3.9600.17119 | 218,112 | 08-May-2014 | 23:08 | x86 |
For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
| File name | File version | File size | Date | Time | Platform |
|---|
| Ks.sys | 6.3.9600.17119 | 295,424 | 08-May-2014 | 23:06 | x64 |
For Windows RT 8.1
| File name | File version | File size | Date | Time | Platform |
|---|
| Ks.sys | 6.3.9600.17119 | 202,752 | 08-May-2014 | 23:02 | Not applicable |
