How To Fix Error 80240020 When Installing Windows 10

Error 80240020 is displayed when your Windows installation folder becomes corrupted. The fix is quite simply. Simply follow these steps:

1. Open the folder “C:\Windows\SoftwareDistribution\Download”
2. Delete all items in that folder.
3. Open the Command Prompt as an Administrator
4. Type “wuauclt.exe /updatenow” (without quotes)
5. Go to Control Panel and open Windows Update. The update should begin download once again.

If the above doesn’t work try change your computer’s time to a month forward or so and try the above steps again.

And if everything fails and Windows Update just refuses to work then just download Windows 10 directly from the Microsoft Website here: https://www.microsoft.com/en-us/software-download/windows10ISO