Learn how to update your security processor or TPM firmware to protect Windows 10 and your device from attacks by malicious software.

There are several places where your recovery key might be, depending on the choice that was made when activating BitLocker. Expand each section to learn more: What if I can't find the recovery key? If your device is managed by an organization, check with your IT department to retrieve the recovery key.

When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether. If this happens, you can use the Deployment Image Servicing and Management tool (DISM) and the System File Checker tool (SFC) to scan your system files and restore any corrupted or missing files.

You can update your controller wirelessly, with a USB connection, or on a PC using the Xbox Accessories app. If you encounter any issues while updating your controller, go to: I can’t update my Xbox controller. Did this resolve the issue? Find out how to keep your Xbox Wireless Controller up to date.

Note: Individual entries in the following table can be referenced directly through a bookmark.If you select any bug reference ID in the table, a bookmark tag is added to the URL by using the "#bkmk_NNNNNNN" format. You can then share this URL with others so that they can jump directly to the desired fix in the table.

To download the recovery image, you’ll need a USB drive. Before you download a recovery image, format your USB drive to FAT32. Having trouble signing in? Contact Us.

Windows devices that has Unified Extensible Firmware Interface (UEFI) based firmware can run with Secure Boot enabled. The Secure Boot Forbidden Signature Database (DBX) prevents UEFI modules from loading. This update adds modules to the DBX. A security feature bypass vulnerability exists in secure boot.

Customers can temporarily resolve the issue by updating permissions (ACLs) on the affected directories. Follow these steps: Open PowerShell as an Administrator. Update the permissions for C:\ProgramData\ssh and C:\ProgramData\ssh\logs to allow full control for SYSTEM and the Administrators group, while allowing read access for Authenticated Users.

Microsoft is working with Citrix to address this issue and will update this documentation once a resolution is available. After installing this security update, you might experience issues with USB audio devices.

Customers can temporarily resolve the issue by updating permissions (ACLs) on the affected directories. Follow these steps: Open PowerShell as an Administrator. Update the permissions for C:\ProgramData\ssh and C:\ProgramData\ssh\logs to allow full control for SYSTEM and the Administrators group, while allowing read access for Authenticated Users.