If you encounter an error message during Windows Updates that reads, "Some update files are missing or have problems, Error 0x80070570," then here are some steps to fix the problem.
1: Windows Updates Error Code 0x80070570 - Reboot
The first thing to try, if you haven't, is to reboot your computer. Try to update or activate it again.
2: Windows Updates Error Code 0x80070570 - Windows Repair
Windows Repair can reset all the Windows Update settings saving you a lot of work.
Open a elevated command prompt and type in the following two lines, and press Enter after each:
net stop wuauserv net stop bits
Each command should take a few seconds, so wait until you see the messages that the services were stopped successfully. Leave the command prompt open for now.
Navigate to C:\Windows\SoftwareDistribution and open the folder. Press CTRL + A to select all files and folders, then press the Delete key to delete all the files in the SoftwareDistribution. We don't want to delete the folder itself.
Rebooting will start the two services we stopped, but if you don't want to reboot, open up the command prompt again and type in the following two lines, and press Enter after each: