"another installation is already running" I am trying to install blender for the first time. I have tried the most recent three releases and all have same problem (for me). Which is an error message saying I already have an installation in progress. 

I am on windows 10 and shut down my computer after use.

Any ideas?
Difficult to solve the problem - not enough data.

But there is no reason to install Blender, just download and install zip archive in preferred directory!

You can use several versions:



User folders used automatically: