HUGE UPDATE
I now figured out why i can't install the .NET Framework 3.5 and new the Windows DirectPlay features.
I think this happens because i recently moved a lot of files. I wanted to do all Programs and stuff on my data HDD (F:), and windows running on my SSD (C:). I created those Symlinks via mklink /D:
C:\ProgramData → F:\ProgramData
C:\Program Files → F:\Program Files
C:\Program Files (x86) → F:\Program Files (x86)
and, most importantly to the answer below:
C:\Users\All Users → F:\ProgramData
When i try to install now the features .NET Framework 3.5 and DirectPlay I get the exact same errors as in my old question below.
Windows Updates are failing with error code: 0x80070bc9, Windows Defender with error code: 0x80070643
How can i make windows update and features work again without moving ProgramData back to C: drive?
OLD QUESTION:
When i try to install the .NET Framework 3.5, the installation failures.
I moved my ProgramData folder to another drive recently (I symlinked from C: to this drive)
The Install Error (C:\Windows\Logs\DISM) update: http://scshot.deepspace.onl/eff24e62-f2b6-431f-a280-821d48554f6e.log
The CBS (C:\Windows\Logs\CBS\CBS.txt) (only this file because it's the only one which was changed today) http://scshot.deepspace.onl/6d071d59-f6cf-4da5-a753-38f29a31150d.log
C:\Windows\system32>Dism /online /enable-feature /featurename:NetFX3 /All /Source:E:\sources\sxs /LimitAccess
Tool for image management Version: 10.0.10586.0
Features will be activated [==========================100.0%==========================]
Error: 3017
The requested procedure failed. A system restart is required to revert the changes.
The DISM-Protokollis here: "C:\Windows\Logs\DISM\dism.log".

Tempdirectory to your hdd? (Win+Pause/Break -> Advanced Sys Settings -> Advanced tab -> Environment Variables, both User and System variables. I do aD:\TEMPon my machine.) If you've made any registry changes, have you run your 64-bit version of Regedit, and all of your changes present? – benJephunneh Jun 23 '16 at 19:55Program Files(and(x86)), I recommend leaving them on yourC:drive and simply changing your default installation directories in registry to your hdd. Some programs will still demand space inC:\Program Fileseven if it's installed off the system drive (I think Visual Studio does). Here, again, I think you'll need to do this in 32- and 64-bit Regedits:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ProgramFilesDir' and 'ProgramFilesDir (x86). If you go that route, at least you won't have to remember to change the install directory every time. – benJephunneh Jun 23 '16 at 20:04