I try to upgrade my laptop with win7 to win10 but it never works.
There always comes this mistake that stands above.
Can someone help me please.
Here are some tips, but do not download anything
https://errortools.com/de/windows/fix-error-code-0xc1900101-0x30018-in-windows-10/?locale=en
I recommend upgrading instead of upgrading to Win10.
This should work much more error-free and then be faster.
You then have to manually back up a data manually.
Otherwise, if you still want to upgrade, I would have found the following:
https://www.windows-faq.de/2018/03/12/windows-update-fehlercode-0xc1900101-0x30018/