[?] Mathematica 11.1: no start by clicking on nb file in Windows Explorer

Questions
,
1

I installed Mathematica 11.1 the other day. After installation I cannot get Mathematica started by double clicking on a file in Windows Explorer.
Right click and selecting Open With and then Wolfram Mathematica 11.1 does open the file correctly.
I have seen this problem in the past but cannot remember how it was solved (maybe by a new release of Mathematica?).
The clean start, by pressing Ctrl+Shift when starting Mathematica

https://reference.wolfram.com/language/tutorial/TroubleshootingTheWolframSystem.htm

does not solve the problem. Does anyone have a solution this problem?

Thanks a lot - Maarten

2

Right click → Properties → General → Open with → Change → Wolfram Mathematica 11.1

3

Thanks a lot.

What equally works: right click, Open with, Select default program, select Wolfram Mathematica 11.1.

Regards, Maarten