Why keep files and apps option greyed out when upgrading to Windows 11

This is a specific and frustrating issue, especially since you've already checked the common culprits like disk space and edition matching. The keep files and apps option greyed out when upgrading typically indicates the installer has detected a blocking incompatibility that prevents an in-place upgrade..

Solution 1: Remove Blocking Software

• Uninstall third-party antivirus completely (use the vendor's removal tool if necessary)
• Temporarily uninstall virtualization software
• Disable any security/encryption software temporarily
• Check for recently installed software that might be causing conflicts

Solution 2: Update All Drivers

• Update your BIOS/UEFI to the latest version from your motherboard manufacturer
• Update chipset drivers from your motherboard/PC manufacturer
• Update storage controllers and graphics drivers
• Use Windows Update to get the latest driver updates

Solution 3: Run Compatibility Checks

• Open Command Prompt as Administrator
• Run the Windows 11 Compatibility Checker:
  cmd
  setup.exe /Auto Upgrade /Compat ScanOnly

Solution 4: Use Windows Update Instead

• Try upgrading through Windows Update instead of the installer:
• Go to Settings > Windows Update > Check for updates
• If Windows 11 is offered, use this method instead

Solution 5: Check System Requirements Manually

• Verify TPM 2.0: Press Win + R, type tpm.msc
• Verify Secure Boot: Press Win + R, type msinfo32, check "Secure Boot State"
• Check CPU compatibility: Ensure your processor is on Microsoft's supported list