Hi, good day!
Are you getting any errors after trying the Windows 11 Installation Assistant?
Few things to check on the PC
- Unplug all external peripherals except for the Mouse, Keyboard, and LAN cable before starting
- Disable or uninstall any third-party Antivirus program to prevent it from interfering with the upgrade
After that, please try using the Windows 11 Installation Assistant again.
I look forward to receiving your update and I'm willing to collaborate with you till we resolve the issue. Do keep me informed by clicking "Add comment" below.