Many thanks for your suggestion! Unfortunately that did not work. When I try to manually download the .NET Framework 4.7.2 I get this error:
The .NET Framework 4.72 is not supported on this operating system.
I looked up possible fixes for this error
here (picture attached) but as per the website, our OS is not Windows 7, and it does follow the system requirements (as shown in second picture attached).
I am at a loss as to what the problem may be, and I would greatly appreciate any help I can get! Thank you!