Almost everything BRUTAL changes is reversible, so a problem that appears right after an optimization pass is usually quick to fix. The trick is to match the symptom to the module that most likely caused it, then undo just that change instead of guessing.
Each row pairs a symptom with the module (or two) most likely responsible. If you only ran Smart Optimize or a Boost pass, you may not have touched all of these, so undo the ones you actually applied first.
| Symptom | Most-likely module(s) |
|---|---|
| No sound | Module 15 (system debloat + latency, audio latency tweaks) or Module 22 (app optimizer) |
| No internet | Module 5 (network stack) or Module 17 (network adapter deep) |
| Black screen / display glitch | Module 6 (GPU tweaks) or Module 14 (GPU deep tuning) |
| A game won't launch | Module 3 (IFEO priority), Module 9 (Emulator Performance Tuning) or Module 11 (VBS/Spectre) |
To see exactly what you ran, check the log on the Optimize page or %LOCALAPPDATA%\BRUTAL\guardian_log.txt. Not sure which module does what? See what each module does.
Work down this list. Stop as soon as the problem clears.
For the full picture of how reverting works — including how the Undo backups are stored and what survives a reboot — read undo and restore defaults.
Email [email protected] with your app version (Settings → System Information / About), your Windows version, the exact steps that triggered the problem, and the Optimize/Guardian log from %LOCALAPPDATA%\BRUTAL\. Screenshots help too. See contact support.
Which module broke my sound?
Usually Module 15 (system debloat, audio latency tweaks) or Module 22 (app optimizer). Open the Optimize page and click Undo on whichever of those you applied. If you're unsure which you ran, use Settings → Restore All Defaults.
My screen is black and I can't click anything — what now?
Boot Windows into Safe Mode, then run the suspect module's Undo, or Settings → Restore All Defaults, or roll back to the 'BRUTAL Optimizer — Before Optimization' System Restore point. A black screen most often traces to Module 6 (GPU tweaks) or Module 14 (GPU deep tuning).
Can I undo Module 1 or 2?
No — those are transient (process/service kill and cache clean). They don't change persistent settings, so there's nothing to revert and no Undo button. They aren't the cause of a setting that stays broken.