At this moment, I doubt you need to re-install Brave Browser for Windows.
In the meantime, I typically recommend getting and installing CCleaner by Piriform - they have a free version - for cleaning cache and stuff, on Windows machines.
“https://www.ccleaner.com/ccleaner/download?pc”
Also, back up your Bookmarks.html file.
Go to: brave://bookmarks/
Locate the Menu button — possibly near the Search (Magnifying Glass) icon
Click on that button, and select “Export bookmarks”
Tips on exporting the Bookmarks:
Good idea to occasionally back up your Windows Registry
And, Create a System Restore Point