[Can't open files while using Paint.net]

Yes, I have setted Update automatic, so this could be the case. 

I setted system restore point again. This settings was lost after I installed Windows again in January.

[Can't open files while using Paint.net]

Thank you for your reaction IHaveNoName and BoltBait! 

 

This afternoon I installed Paint.net 4.1.4 again and now the problem is gone!

 

I really don't know what went wrong.

When the problem occured  I scanned my computer at once with Kaspersky and MalwareBytes, but nothing was found.

 

[Can't open files while using Paint.net]

I don't know. A year ago I installed it too without problems

[Can't open files while using Paint.net]

It was a modified Firestorm viewer for Second Life / Opensim

[Can't open files while using Paint.net]

When I start Paint.net version 4.1.4 and select Ctrl-O ( open file) the program does not react anymore.

When I select a file and choose open with paint.net, then I can modify that file in Paint.net and save the file.

PdnRepair.exe did not solve the problem.

 

The problem started after I installed something.

Uninstalling of that program did not solve the problem.

 

Versions 4.0 and 4.12 I can't use on the same reason. Version 3.5.11 works good. But there the functionality is not as good as in the 4.1.4 version.

 

How can I solve this problem??