Requires study. You might start at:
‘Hardware acceleration is not working - #4 by 289wk’
and continue studying, on down that page.
One test - a temporary step - is simply changing the name of the brave.exe to brave1.exe ← You probably should not leave that temporary name, but at least you might be able to start up Brave Browser and then retrieve the Brave Browser version numbers (and report those, up at your Original Post, above).
64 architecture, system level installation:
"C:\Program Files\BraveSoftware\Brave-Browser\Application\brave.exe"
x86 architecture, system level installation:
"C:\Program Files(x86)\BraveSoftware\Brave-Browser\Application\brave.exe"
64 / x86 architecture, user level installation (NOTE: you must substitute your Windows OS user account name for [UserName] ):
"C:\Users\[UserName]\AppData\Local\BraveSoftware\Brave-Browser\Application\brave.exe"
You might also take the opportunity (“it’s running!”), to back up your bookmarks and passwords ← details at:
‘Brave deleted all my active tabs and favorites - #2 by 289wk’
Alternative method for starting up Brave Browser (Windows OS) :
‘Brave shutting itself every 5 minutes - #4 by 289wk’