If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

The Microsoft Authenticator app helps you sign in to your accounts when you're using two-step verification. Two-step verification helps you to use your accounts more securely because passwords can be forgotten, stolen, or compromised.

When you start your computer successfully, the Windows Registry Checker tool (Scanreg.exe) creates a backup of system files and registry configuration information (including user account information, protocol bindings, software program settings, and user preferences) once daily.

There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results. Right-click Start , then select Run. Type regedit in the Open: box, and then select OK.

Regsvr32 is a command-line utility to register and unregister OLE controls, such as DLLs and ActiveX controls in the Windows Registry. Regsvr32.exe is installed in the %systemroot%\System32 folder in Windows XP and later versions of Windows. The 64-bit version is %systemroot%\System32\regsvr32.exe.

Recovery options in Windows. Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

Select Start > Settings > Privacy & security > Device encryption. If Device encryption doesn't appear, it isn't available. You may be able to use standard BitLocker encryption instead. Open Device encryption in Settings. If Device encryption is turned off, turn it On. Turn on standard BitLocker encryption.

With this free app, you can sign in to your personal or work/school Microsoft account without using a password. You’ll use a fingerprint, face recognition, or a PIN for security. Note: As of March 2024, Microsoft will no longer support Authenticator App versions greater than one year old.

Get your product key. Reactivate Windows 11 after a hardware change. When you're ready to reactivate, make sure that your device is connected to the internet and then follow the steps for either a digital license or product key. If you have a digital license, run the Activation troubleshooter.

Regedit.exe uses .reg files to import and export registry subkeys and values. You can use these .reg files to remotely distribute registry changes to several Windows-based computers. When you run a .reg file, the file contents merge into the local registry.