Occasionally, the launcher may also fail to start due to a missing Visual C++ redistributable, which is necessary for initialization. In simple terms, the SU-PQR5 error indicates that something is blocking the launcher from starting. This guide will help you fix the SU-PQR5 error and get the Epic Games Launcher running smoothly again.
1. Run Epic Games Launcher as Administrator
If the launcher is being restricted by your system’s security settings or antivirus software while attempting to modify files, running it as an administrator can resolve the issue. This grants the launcher full access to system resources and eliminates permission-related conflicts that may be causing the error.
2. Add the -SkipBuildPatchPrereq Command Line
The -SkipBuildPatchPrereq command line disables checks for prerequisite components during startup. If the SU-PQR5 error is caused by a failed or corrupted prerequisite, this step can help bypass the check and allow the launcher to start.
3. Reinstall Microsoft Visual C++ Redistributables
The Epic Games Launcher relies on Microsoft Visual C++ Redistributables for background operations and user interface elements. If these components are missing or corrupted, the launcher may fail to start. Reinstalling these redistributables ensures that the required runtime components are correctly configured. If none of the above methods resolve the problem, consider reinstalling the Epic Games Launcher. This will remove any corrupted installation files and replace them with a clean, up-to-date version that should work without errors.
