Cannot install any .Net Framework (4.5.1 or 4.5.2) on Windows 7

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For the past while, my computer kept telling me I had two updates to install, but neither of them would install. They are

Microsoft .NET Framework 4.5.2 for Windows 7 x64-based Systems (KB2901983)

and

Update for Microsoft Visual Studio 2010 Tools for Office Runtime (KB2001652)

I always get the same error message. "Code 643 Windows Update encountered an unknown error." And when I've tried the Offline Updater for .NET Framework 4.5.2, it says ".NET Framework 4.5.2 has not been installed because: Fatal error during installation."

Here is the log file it gives me...

OS Version = 6.1.7601, SP = 1.0, Platform 2, Service Pack 1
OS Description = Windows 7 - x64 Home Premium Edition Service Pack 1
MSI = 5.0.7601.18637
Windows version = amd64_windowsfoundation_31bf3856ad364e35_6.1.7601.17514_none_615fdfe2a739474c.manifest
Windows servicing = 6.1.7601.18766
CommandLine = C:6e8c44dd3336f076305343f149b7da\Setup.exe /x86 /x64 /redist
TimeZone = Eastern Daylight Time
Initial LCID = 1033
Using Simultaneous Download and Install mechanism
Operation: Installing
Package Name = Microsoft .NET Framework 4.5.2 Setup
Package Version = 4.5.51209
User Experience Data Collection Policy: AlwaysUploaded
Number of applicable items: 11
Exe (C:6e8c44dd3336f076305343f149b7daSetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
ServiceControl operation succeeded!
ServiceControl operation succeeded!
Exe (C:6e8c44dd3336f076305343f149b7daSetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
MSI (C:6e8c44dd3336f076305343f149b7danetfx_Full_GDR_x64.msi) Installation failed. Msi Log: Microsoft .NET Framework 4.5.2 Setup_20150603_233730061-MSI_netfx_Full_GDR_x64.msi.txt
Final Result: Installation failed with error code: (0x80070643), "Fatal error during installation. " (Elapsed time: 0 00:00:29).


I tried a bunch of different things I found on the internet, and nothing has worked. I tried uninstalling the .NET Framework 4.5.1 I had to see if that would somehow help, but it didn't change anything. And now, I'm getting the same problems when I try to
install .NET Framework 4.5.1, so I don't know what to do at this point. I don't really know a lot about doing this kind of stuff, so I'm really hoping I can get some advice put into simpler terms.

Also, as a side question: Would all of this and not having that Framework be the reason I haven't gotten the "Get Windows 10" thing to show up in my system tray?



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