What to do if win10 update fails

Either way, sometimes the update installation will not be too smooth, there may be various errors, such as 0x8024402f. This situation is generally caused by a problem with the user's connection to the Microsoft server. This may be a problem with Microsoft, or it may be a problem with the network itself. If it is the latter, it is not too big a problem. It may be solved after waiting for a while. If the user is connected to the Microsoft server, you can try to solve it with the following command. This solution comes from the Microsoft Community Forum.
The specific method is as follows:
1, open the command prompt in administrator mode.
2, enter the following commands in turn, pay attention to the use of "space";:
net stop CryptSvc
ren %windir%system32catroot2 catroot2.old
net start CryptSvc
net stop wuauserv
regsvr32 wuapi.dll /s
regsvr32 wups.dll /s
regsvr32 wuaueng.dll /s
regsvr32 wucltui.dll /s
regsvr32 wuweb.dll /s
regsvr32 msxml.dll /s
regsvr32 msxml2.dll /s
regsvr32 msxml3.dll /s
regsvr32 urlmon.dll /s
net start wuauserv
regsvr32 softpub.dll /s
regsvr32 initpki. Dll /s
regsvr32 mssip32.dll /s
regsvr32 wintrust.dll /s
regsvr32 dssenh.dll /s
regsvr32 rsaenh.dll /s
regsvr32 gpkcsp.dll /s
regsvr32 sccbase.dll /s
regsvr32 slbcsp.dll /s
regsvr32 cryptdlg.dll /s
regsvr32 jscript.dll /s

3. After all execution, restart the computer.
This method is basically to reset the update service and related registry, if this is the reason, this method should have an effect.