Скачать или смотреть How to Fix Windows 10 Upgrade Assistant Stuck at 99% installing [FIXED]

If the progress of Windows Upgrade Assistant is stuck at 99%, this video is useful for you.
1. Using Command Prompt
Open Command Prompt as Administrator, excute these commands below:
sc config wuauserv start=auto
sc config bits start=auto
sc config cryptsvc start=auto
sc config trustedinstaller start=auto
exit
2. Restart Windows Update service
Press Windows Key + R then type services.msc in the Run dialog box. Click OK to open Services.
Scroll down until you reach the Windows Update service.
Right-click and press Stop, and then repeat the action but click Start instead.
Restart your computer.
3. Use Windows 10 Media Creation Tool
Occasionally, Windows Upgrade Assistant will fail to provide upgrades. Luckily, there are more than few alternatives you have at your disposal. The Windows 10 Media Creation tool is the best replacement and, arguably, it’s a much better tool for the job.
Windows 10 Upgrade Assistant Stuck At 99% Fix