How to fix "An error occurred. (Error code: 9) (Extra code: 0)" when updating Microsoft Edge?
Clear Edge Cache: Clearing the cache sometimes resolves update issues. Go to "Settings" > "Privacy, search, and services" > Under "Clear browsing data", click on "Choose what to clear".
Reset Edge Settings: Resetting all settings to their default might help with this issue. Go to "Settings" > "Reset settings" > Click on "Restore settings to their default values".
Reinstall Edge: You've mentioned you already did this but make sure when uninstalling that all files related to Edge are removed before reinstalling.
Check System Software Updates: Make sure your macOS is up-to-date as this could also affect how certain apps work.
Use Beta or Canary Version of Edge: These versions are meant for testing new features and fixes before they're released in the stable version of Edge.
Disclaimer: Your browser automatically saves temporary internet files to help pages load faster. Clearing this cache will sometimes fix page display problems. Please back up all your personal files first, such as Favorites, to ensure you do not lose data.
However considering you have already purchased Restoro and would like us to assist you in doing that utilizing a remote session, please contact our support and they will be happy to help you.