- The ESET error code MSI 5003 indicates an installation error. To rectify the installation issues, you can use the following procedure.
- Visit the official site and download the ESET Installation Fixer to your system.
- Once the download is over, run the tool from your administrator account.
- Open the command prompt window and key in C:\Users\Owner\Desktop\ESETInstallationFixer_64.exe-fix MRL -b.
- Tap the Enter key, and check if the issue has been resolved.
- Next, fix the missing MSI registry. To do so, type C:\Users\Owner\DesktopESETInstallationFixer_64.exe -fix MMR in the command prompt.
- Next, rectify the search service index using a command.
- Use the same command stated in the last step but with SSI at the end instead of MMR.
- Again, for registry value types, key in the same command with RVT -b in the end.
- Finally, resolve the MaxNumFilters using the command: C:\Users\Owner\Desktop\ESETInstalationFixer_64.exe -fix MNF.
- Check if you are able to install ESET without any errors.
- Contact the technical experts if you are unable to resolve the error.
