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.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Uninstall or remove apps and programs in Windows. There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter.

You can use the Settings app to view and manage passkeys saved for apps or websites. In the Settings app on your Windows device, select Accounts > Passkeys or use the following shortcut: Manage your passkeys. A list of saved passkeys is displayed and you can filter them by name.

Signing in with a passkey is simple, fast, and helps protect you against phishing attacks. Passkeys are supported on desktop and mobile browsers (mobile app support is coming soon). You can use Windows Hello on Windows 10/11 devices to sign into your account with a passkey.

The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

If your device isn’t up to date or needs attention, PC Health Check will let you know. Use this section of PC Health Check to get info on how your batteries are performing compared to their original capacity for devices with one or two batteries.

You can think of passkeys as the evolution of passwords: instead of remembering (or writing down!) your complex passwords, a passkey is linked to your device (for example, your computer or your phone). When you want to sign in to a website or application, your device acts like a magic key.

Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it). Select Start > All apps > Microsoft Store. In the Microsoft Store, search for and select Quick Assist. Select Get or Install.