Riot Client not opening on server

The following explains how to fix an issue where Riot Games does not open on Windows Server by uninstalling the latest Windows Server security updates.

1. Open Settings on the Windows Server
2. Navigate to Update & Security → Windows Update. (Figure 1)

Figure 1

3. Click View update history. (Figure 2)

Figure 2

4. Click Uninstall updates. (Figure 3)

Figure 3

5. Delete latest security update (KB5126646). (Figure 4)

Figure 4

6. Restart the Windows Server to apply the changes.