In this article, we will look at how to solve the errors “0xc1900101, 0x40017 or installation error at second_boot phase“.
If you encounter these errors while updating from the “Windows Update” or upgrading to a newer version of Windows 10, these solutions will definitely help you.
Through trial and error, we found a method that helped our users, and it might help you resolve this issue as well.
1) Run Command Prompt as an administrator: Search => CMD => Right-click => Run as administrator.
Enter the following commands one by one (some may not work for you, but continue through the list):
net stop bits
net stop wuauserv
net stop appidsvc
net stop cryptsvc
DEL “%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\qmgr*.dat”
move c:\Windows\SoftwareDistribution SoftwareDistribution1
move c:\Windows\system32\catroot2 catroot21
del /F /Q c:\Windows\SoftwareDistribution1\*
rmdir /S /Q c:\Windows\SoftwareDistribution1
sc.exe sdset bits D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
sc.exe sdset wuauserv D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
net start bits
net start wuauserv
net start appidsvc
net start cryptsvc
2) Download the following .reg files, which will automatically correct some values in your registry. One of them may not run for you, but that’s okay.
After completing both procedures, restart your PC and try updating the system again.
