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There're not new updates, for Wins 8.1 : Due to the end
of its support. if trying to install pending updates..
Go ahead with, theses troubleshoots below
if the **0x80070570** error appeared during the. Windows update process..
Restart the computer and manually force a Windows update. To do so
select Start Menu > Settings > Update & Security > Check for update
if the above actions, didn't work : apply the Microsoft advice
after open the link > Scroll down and tick the ( ) Windows 8.1
Link : Fix Windows Update errors - Microsoft Support ****