Summary. Security updates released on and after July 6, 2021 contain protections for a remote code execution vulnerability in the Windows Print Spooler service ( spoolsv.exe) known as “PrintNightmare”, documented in CVE-2021-34527.

To repair the corrupted files manually, view details of the System File Checker process to find the corrupted file, and then manually replace the corrupted file with a known good copy of the file. Windows 8.1 or Windows 8. Windows 10, Windows 7, or Windows Vista. More Information.

The following file is available for download from the Microsoft Download Center: Download the package now. For more information about how to download Microsoft support files, click the following article number to go to the article in the Microsoft Knowledge Base:

Microsoft generally releases the MSRT on a monthly cadence as part of Windows Update or as a standalone tool. (For exceptions, see Skipped releases.)Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families).For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

Target Date. Event. Applies To. March 12, 2019. Stand Alone security updates KB4474419 and KB4490628 released to introduce SHA-2 code sign support.. Windows 7 SP1 Windows Server 2008 R2 SP1. March 12, 2019. Stand Alone update, KB4484071 is available on Windows Update Catalog for WSUS 3.0 SP2 that supports delivering SHA-2 signed updates. For those customers using WSUS 3.0 SP2, this update ...

Windows 10 Windows 11. Summary. Microsoft Update Health Tools is offered to devices through Windows Update as update KB4023057. This update is applicable for both Windows consumer and commercial devices, with a slightly different purpose and functionality.

KB5031539: Servicing stack update for Windows 10, version 21H2 and 22H2: October 10, 2023. Windows 10 Home and Pro, version 21H2 More... Windows 10, version 2004 reached the end of servicing (EOS) on December 14, 2021 for all editions. For more information, see here.

KB5034232: Compatibility update for installing and recovering Windows 10, version 21H2 and 22H2: January 9, 2024. Windows 10 Home and Pro, version 21H2 More... Windows 10, version 2004 reached the end of support (EOS) on December 14, 2021 for all editions.

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

How to get this update. Install this update. Prerequisites. There are no prerequisites to apply this update. Restart information. You don't have to restart your computer after you apply this update. Removal information. Servicing stack updates (SSUs) make changes to how updates are installed and cannot be uninstalled from the device.