Get help with product key errors, or geographical region errors, when you redeem a new Office product key on Office.com/setup.

Learn how to check if a version of Windows supports multiple languages or is limited to a single language.

Learn how to prepare your Windows device for a hardware change and find help reactivating Windows after a hardware change is complete.

Learn how to get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.

Learn how to troubleshoot Windows sign in issues, including problems signing in to your Windows device after upgrading.

Use Windows Search in the taskbar or File Explorer to quickly locate files, apps, and settings. Integrated search helps return relevant results quickly, reducing time spent navigating folders.

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. If you can’t find the BitLocker recovery key and are unable to undo any changes that caused it to be needed, you’ll have to reset your device using one of the Windows recovery options.

Learn how to use Narrator, a screen-reading app built into Windows, with this complete guide and how-to articles.

If you're warned by Windows Update that you don't have enough space on your device to install updates, see Free up space for Windows updates. If you experience internet connection issues while updating your device, see Fix Wi-Fi connection issues in Windows. If you're having trouble installing updates, see Troubleshoot problems updating Windows.

Windows Update also installs the latest software updates to improve the reliability of Windows, which includes new drivers for your hardware. If you have devices running an unsupported version of Windows, we recommend upgrading them to a more current, in-service, and supported Windows release.