Install iTunes error: Microsoft.VC80.CRT,type="win32",version="8.0.50727.6195",publicKeyToken="1fc8b3b9a1e18e3b", processorArchitecture="amd64"

I had the same problem, but was able after TWO DAYS of trying to finally get the newest iTunes installed on my system. It was a nightmare. The short version is you need to install the Microsoft Visual C++ 2005 Redistributable and then update it with a security update. Here is my situation:

1. I have an old laptop, with an intel i5 450M processor and the first-generation Intel HD graphics. So, due to the naming of the "for older video cards" file, I assumed it was a video card problem. It was not.
2. The normal 64-bit iTunes (version 12.6) would not install. I got the following error every time:
   An error occurred during the installation of assembly 'Microsoft.VC80.CRT.type="win32",version="8.0.50727.6195".publicKeyToken="1fc8b 3b9a1e18e3b".processorArchitecture="amd64". Please refer to Help and Support for more information. HRESULT:0x80073715
3. Yes, I could have installed the older 12.5.x "for older video cards" package, which DID install fine--but this was not an option for me because I needed the latest version to be compatible with my iTunes library, which I sync to my desktop. (My desktop uses 12.6 and therefore is not readable by the older version of iTunes.)

After extensive research online, I found a clue on this page:
Troubleshooting issues with iTunes for Windows updates

Search the page for "Microsoft.VC80.CRT" and you'll see a helpful paragraph about fixing it. It's helpful but not quite complete. Here's what I learned that you need to know:

1. You HAVE to install the 2005 package. There are later packages out there, such as 2015; don't be confused. You need 2005. So, I downloaded and installed the Visual C++ 2005 Redistributable 32-bit version:
   https://www.microsoft.com/en-us/download/details.aspx?id=3387
2. Then downloaded and installed the Visual C++ 2005 Redistributable 64-bit version:
   https://www.microsoft.com/en-us/download/details.aspx?id=21254
3. I do not know whether you need both of the above. You probably only need the 64-bit one. I did both.
4. Now that the package is installed, you have to install a security update for it, named the "Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package MFC Security Update":
   https://www.microsoft.com/en-us/download/details.aspx?id=26347
5. This provides a confusing choice of three files to download. I downloaded all three, because there are NO INSTRUCTIONS to help. One, the "I64" one, did not work on my laptop because my laptop is AMD rather than Intel. But the other two installed and worked fine. One was for 32-bit and one for 64-bit. Since I installed both versions above, I installed both updates.

Now I installed the full 64-bit, up to date version of iTunes (12.6 as of the time of this writing) and it WORKED!!!!

Try this:

• iTunes 12.2.1.16 for Windows (32-bit): iTunesSetup.exe
• iTunes 12.2.1,16 for Windows (64-bit): iTunesSetup.exe
• iTunes 12.2.1.16 for Windows (64-bit – for older video cards): itunes64setup.exe

If you have a 64-bit Windows 10 and are having issues installing iTunes, simply download iTunes 12.2.1.16 for Windows (64-bit – for older video cards) directly from the link given above. This particular version of iTunes should most definitely fix your problem.

If this helped, please hit that thanks button!

This worked wonderfully, and is better than using the 3 links above. Thank you so much. 🙂

Thank you so much for this help. Even in 2017 this problem exists. On an Windows10-64 Bit system I only installed the X64 versions of your links above and it worked.