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.NET framework 3 / 4 fatal error / installation problems
Hi. Usually i never post about such issues as i'm able to solve them myself or with bit of googling, but this is getting on my nerves. been messing with it for over 5 hours by now.
All this started that my Camtasia Studio 8 stopped launching, process just closed after i launched it. This is second time it happend, first time i restored some registry backup made by registry mechanic (even tho that backup was from the time it stopped working) and then magically it started working again, this time i never made any changes in registry.
So i used Revo Uninstaller pro to check what camtasia is doing and delete ALL registry values and files that camtasia installer have ever created. That didn't help either, so i thought that only thing that may cause this is .NET 4 (camtasia website says that .NET 4 is required for it to work).
sooo i uninstalled .NET 4 and everything related, cleaned registry ..etc
Now im unable to re-install .net 4.
I get the following error code: 0x80070643
Also if i go into windows features on/off and try to disable framework 3.5, it gives errors, says something like that "all the changes could not be made" and asks to reboot. after reboot, nothing's changed.
What i have tried:
1. Followed ALL the steps from this microsoft article:
.NET Framework update installation error: "0x80070643" or "0x643"
2. Used .NET Framework Setup verification utility
it says that 1.1, 2.0, 3.0 and 3.5 are intact and no errors found. even tho clearly 3.5 is not intact!
3. use the .NET repair tool (shown in that microsoft article).
Any ideas what the hell is going on with it and how can i fix this?
Isn't there a way to pull all the files + registry values from another PC running exact same OS?