How to reinstall Framework v4.0.30319

Brosweer 31

I have problems with a few apps after .NET Framework v4.0.30319 got corrupted. And if I run the installation, it says it is part of the system. What am I supposed to do?

1 answer

Jiachen Li-MSFT 26,671 Reputation points Microsoft Vendor

2022-10-31T01:36:54.117+00:00

Hi @Brosweer ,
Please try .NET Framework Repair Tool.
Best Regards.
Jiachen Li

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Brosweer 31 Reputation points

2022-10-31T12:52:22.903+00:00

This did not work. But thanks.

Bruce (SqlWork.com) 56,686 Reputation points

2022-10-31T17:29:39.423+00:00

.net 4.0 is part of the O/S (with some versions of windows), thus it can not be removed, or reinstalled. It is also obsolete and out of support. some features may be broken by O/S upgrades. This is probably what happened in your case.

You best option is to update the offending application to one that runs on a supported framework. You could create virtual machine that runs an obsolete version of the windows, and host the application there.
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