Improvement 1Enables servicing stack updates to be installed offline.
Improvement 2Adds a feature that compresses unused binary files and allocates free disk space to prepare Windows for future updates.
Improvement 3Adds a feature that automatically frees disk space when you uninstall updates, such as driver packages.
Improvement 4Adds a feature that reduces the footprint of the component store.
Issue 1The installer in the Unified Extensible Firmware Interface (UEFI) firmware does not work correctly.
Note You can use the installer to update the signature database (DB) or revoked signatures database (DBX).
Issue 2The Disk Cleanup Wizard does not accurately report how much disk space will be freed when you run the cleanup process.
Issue 3Consider the following scenario:
- You install a language pack, such as the Spanish language pack, on a server.
- You restart the server.
- You install update 2779768.
- You uninstall the language pack. However, you do not restart the server.
- You try to install update 2770917.
Issue 4When you try to install some updates, the updates are not installed, and you receive the following error message:
Issue 5The Deep Clean feature replaces the LDR versions of the component files that are targeted by this update with the GDR versions of the files. This may cause issues if Windows refers only to LDR packages.
Issue 6The Inbox Corruption Repair feature cannot repair a corrupted update for a certain structure. When this issue occurs, you may receive error codes 0x800f081f (CBS_E_SOURCE_MISSING) and 0x800f0906 (CBS_E_DOWNLOAD_FAILURE).
Issue 7Only the first supported device that is listed under the REG_MULTI_SZ_APPEND feature is recognized. This issue occurs after you install update 2779768.
Note Windows uses the REG_MULTI_SZ_APPEND feature to implement all the device solutions for MPIO products.
How to obtain this update
Windows UpdateThis update is available from Windows Update.
Microsoft Download CenterThe following files are available for download from the Microsoft Download Center:
|All supported x86-based versions of Windows 8||Download the package now.|
|All supported x64-based versions of Windows 8||Download the package now.|
PrerequisitesTo apply this update, you must be running Windows RT or Windows 8.
Registry informationTo apply this update, you do not have to make any changes to the registry.
Restart requirementYou must restart the computer after you apply this update.
Update replacement informationThis update replaces the following update:
Removal informationAfter you install this servicing stack update, you cannot uninstall it to revert to an earlier version of servicing stack update.
Known issuesThe following known issues may occur after you install update 2821895:
- The update may be displayed multiple times on the View update history page in Windows Update. However, the update was only downloaded and installed one time. This causes no issues.
- When you use the System File Checker tool to run the following command, you may receive an error message that states that there are corrupted files. The error message also states that you must restart the computer to repair the files.
sfc /scannowTo work around this issue, use the DISM tool to repair Windows.
After you repair Windows, run the System File Checker tool again. If you still receive an error message that states that there are corrupted files, your system may contain corrupted files. In this situation, contact technical support for more help.
If you want to deploy an operating system image after you install update 2821895, use the DISM tool to repair Windows before you deploy the operating system image.