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  1. How to use the PC Health Check app - Microsoft Support

    Oct 14, 2025 · Learn how to use the PC Health Check app to help you improve your device performance.

  2. Device Performance and Health in the Windows Security App

    In the Windows Security app on your PC, select Device performance & health or use the following shortcut: Device performance & health

  3. Check if a device meets Windows 11 system requirements after …

    Oct 14, 2025 · The easiest way to see if a device meets the requirements for Windows 11 after making hardware changes to the device is with the PC Health Check app: Download and install the PC …

  4. KB5005463—PC Health Check Application - Microsoft Support

    Apr 21, 2022 · Tips on PC health: Provides additional tips to improve overall PC health and performance. Important By default, when you open the PC Health Check application, it will …

  5. Use the System File Checker tool to repair missing or corrupted system ...

    Jan 12, 2007 · Note: You may be able to get a known good copy of the system file from another computer that is running the same version of Windows as your computer. You may wish to perform a …

  6. Windows 11 System Requirements - Microsoft Support

    To help with this, we are providing the PC Health Check app for Windows 10 PCs. In addition to diagnostic checks, there is a push-button simple way to check upgrade eligibility for Windows 11.

  7. Can I upgrade to Windows 11? - Microsoft Support

    For more information, see Windows 11 specs, features, and computer requirements. To see if a Windows 10 device is eligible to upgrade to Windows 11, follow one of these options: Download and …

  8. Tips to improve PC performance in Windows - Microsoft Support

    This article lists several solutions that may help improve your PC’s performance. We recommend trying all the listed solutions as multiple factors can contribute to slow performance.

  9. How to start a scan for viruses or malware in Microsoft Defender

    Select Device details Select Manage in Windows Security Select Quick scan Tips: If you want a deeper scan, instead of selecting Quick scan in step 3, select Scan options and choose the type of scan you …

  10. Windows Update: FAQ - Microsoft Support

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