How to Fix Cannot Install Net Framework 4.8 on Windows 7

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A certificate chain processed, but terminated in a root certificate

Sometimes, you may encounter the error “Installation Did Not Succeed” when installing .NET Framework in Windows 7. The installation of .NET Framework 4.8 may fail due to:

  • A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
How to Fix Cannot Install Net Framework 4.8 on Windows 7

To fix the error, we must download and then install a certificate from Microsoft by following the below steps:

1. Download the certificate from below link.

2. Extract downloaded file, right click on the certificate file then select Install Certificate.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

3. In this screen, select Place all certificates in the following store then click button.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

4. Inside the Certificate Store window, select Trusted Root Certification Authorities then click OK.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

5. Click Finish button to import the certificate.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

6. You would get this Security Warning window, let select Yes to continue.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

7. After the certificate has been imported to your computer, try installing the .NET Framework again to ensure it works properly.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

The timestamp signature and/or certificate could not be verified

Another issue that may arise during the installation of the .Net Framework on Windows 7 is:

  • The timestamp signature and/or certificate could not be verified or is malformed.
How to Fix Cannot Install Net Framework 4.8 on Windows 7

To fix it, we need to patch the system before installing the .Net Framework by downloading and installing a security update for Windows 7:

1. Click on the button below to download the security update.

Or you can download from Microsoft:

2. Open downloaded file to install the security update depending on your Windows architecture.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

3. Windows Update Standalone Installer: Click Yes to install the security update.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

4. The updates are being installed, it would take several minutes to complete.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

5. Restart your computer to take the changes go into effect.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

6. Once your computer restarted, let’s try reinstalling Net Framework again to verify it works.

How to Fix Cannot Install Net Framework 4.8 on Windows 7

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