It seems you are facing issues with upgrading to Windows 11 using the upgrade assistant and ISO. Here are a few steps you can take to troubleshoot this issue: 1. Check Compatibility: - Ensure that your computer meets all the Windows 11 system requirements, including TPM, Secure Boot, and CPU compatibility. 2. Run Windows Update: - Before upgrading, run Windows Update on Windows 10 to make sure it's up to date. 3. Disable Third-Party Software: - Disable or uninstall any third-party antivirus or security software temporarily, as they might interfere with the upgrade process. 4. Clean Boot: - Perform a clean boot on your Windows 10 system to prevent any third-party services from affecting the upgrade process. 5...