Following up on what Rharv said, some years ago, in 2012 actually, another forum member, Silvertones, put together a ".bat" file that would automatically reset RealBand to its default settings. That file is here:

Here's the link: http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=357193&site_id=1

Another forum, Pipeline, detailed the actual coding lines of that file with a "copy" line added. Here is his post:
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you can add a copy command to that bat file also, I keep working backups of them with all the custom settings in, in another folder "Config Backup", so you don't have to go through all the settings again each time it crashes.
If you want a full reset just use the del lines.
You can also right click Reset RealBand.bat Run as administrator if you have problems.

del "c:\RealBand\RB.CFG"
del "c:\RealBand\RealBand.INI"
copy "c:\RealBand\Config Backup\RB.CFG" "c:\RealBand\RB.CFG"
copy "c:\RealBand\Config Backup\RealBand.INI" "c:\RealBand\RealBand.INI"
PAUSE
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Hope this helps.

Jeff

Win11, Intel i7 7700K 4.2Ghz, 32Gb RAM, 2x1Tb HD, 500Gb NVMe, BIAB/RB 2024, MOTU 828MK3 audio, MOTU Midi Express, Yamaha Montage 7, DX7II, TX802, Motif XS Rack, Roland Fantom XR Rack, Oberheim Matrix 1000, VoiceLive3 Extreme, Kontakt 6, SampleTank 4.3