If you are unable to locate the BitLocker recovery key and can't revert any configuration change that might have caused it to be required, you’ll need to reset your device using one of the Windows recovery options. Resetting your device will remove all of your files.

Resolves a vulnerability in Windows DirectWrite that could allow denial of service if an attacker sends a specially crafted sequence of Unicode characters directly to an Instant Messenger client.

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.

Fixes a problem in which an error occurs after you remove and then reinsert a USB COM port device. This issue occurs in Windows 8.1, Windows Server 2012 R2, Windows 7, or Windows Server 2008 R2.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component.

Resolves a vulnerability in Windows Explorer that could allow remote code execution if a user visited a specially crafted webpage.

The manifest expiry feature is removed from all Active Directory Rights Management Services (AD RMS) clients. This is a design change to AD RMS for all supported Microsoft applications and Windows operating systems.

Open Get Help. Checking your Windows activation status. You'll first want to find out if your Windows 11 is activated and linked to your Microsoft account. It is essential that you link your Microsoft account to the Windows 11 license on your device.

Resolves a vulnerability in the Server service that could allow remote code execution if a user received a specially crafted RPC request on an affected system.

Windows 11 Windows 10 Windows 8.1. If you're having problems with your PC, the following table can help you decide which recovery option to use. Select one of the recovery options below and follow the steps to try to get things working again. Remove an installed Windows update. Reset your PC. Use the Startup Repair function.