The below instructions are gathered from the
Microsoft support portal. Please note the following will make edits to your registry on your computer. You are doing the following at your own risk.
In order to force TLS 1.2 within Web Deploy and IIS Manager. The following will need to be done per your operating system version. If you are unsure on how to check what OS you're using. Press and Hold the Windows Key + R (This will open the Run prompt) type in winver and press Enter.
Next, Depending on what OS your computer is running on. You will need to create one of the following .reg file and save it on your computer.
For Windows 2016, Windows 10:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
Open Notepad on your computer and copy and paste the above text and save it as a .reg file.
Next, Type into your search field next to the Start Windows icon and type in regedit hit enter.
Click on File > Import
Look for the .reg file you created and click on Open.
Restart your computer.
For Windows 2012 R2 / 2012, Windows 8.1 / Windows 8
The installed NetFX version must be 4.5.2 or later, as this is the minimum supported NetFX version for 4.x on this OS platform.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
Open Notepad on your computer and copy and paste the above text and save it as a .reg file.
Next, Type into your search field next to the Start Windows icon and type in regedit hit enter.
Click on File > Import
Look for the .reg file you created and click on Open.
Restart your computer.