HP-Laptop has W7 Home Premium SP1 (64) running and was set up newly from scratch. No programs installed, except all the crap, that HP delivers as preinstall. Until now, no Antivirus is installed. User has Admin privileges.
All Updates worked fine - execpt a .NET client component. Windows Update tried to install KB982670 (.Net 4 Client Profile for W7 x64 based Systems). This did not work out, the update never got to an end - after several hours i had to do a forced shut down.
Then i downloaded the installer manually and tried to install by hand, answering the UAC window with yes ... then the install seemed to start, the small circle was rotating for 2 or 3 seconds and thats it. Nothing happened, nothing was installed, no error message came up. Then i tried to install manually the full .NET framework 4, 4.51 (KB2858728) and 4.52 (KB2901907). Same problem, after a few seconds the rotating indicator changes back to normal cursor mode and nothing has happened.
There are no "leftovers" or any other trace of .NET 4.XX components on the machine. I checked that manually and also with the verification tool (the older frameworks are all there and are ok).
I also tried a clean boot and then a manual install again - but got the same result. Whatever version or component of .NET 4.XX i want to install - simply nothing happens.
I had to deactivate all the automatic updates connected to .NET 4.XX in order to not get stucked while shutting down the computer. This is the only issue i have with that computer. But i'm afraid, that every next .NET 4 security-Update will send my computer hanging again, until i have deactivated that particular update.
Any idea or suggestion would be highly appreciated.