Can you try installing Brave using the standalone installer?
Go to:
There you will find releases for all the build channels, ie. Release, Beta, Nightly
If you’re downloading Brave Release, look for the most recent version, it should be labelled something similar to Release v1.xx.xx
(The same goes for Nightly and Beta - e.g. Nightly v1.xx.xx)
When you find the version you want, look for BraveBrowserStandaloneSetup.exe under Assets and then download and install.