Update TROUBLESHOOTING.md

Author: Pnwcomputers

docs/TROUBLESHOOTING.md

@@ -19,3 +19,50 @@
 - Verify installer paths in script
 - Check file permissions on USB drive
 - Ensure installers support silent installation
+ 
+---
+
+### "Sysinternals tools not found"
+**Solution:** Use launcher Menu Option 5 to auto-download, or manually download from [live.sysinternals.com](https://live.sysinternals.com)
+
+### "Execution policy" errors
+**Solution:** Use launcher Menu Option 3, or run: `Set-ExecutionPolicy RemoteSigned -Scope CurrentUser -Force`
+
+### "Access denied" / Permission errors
+**Solution:** Right-click launcher and choose "Run as administrator"
+
+### Script crashes immediately on startup (v2.2 original only)
+**Solution:** ✅ **FIXED** - Use `SystemTester.ps1` instead. Original had missing `Initialize-Environment` function.
+
+### Tool verification (Menu Option 4) crashes
+**Solution:** ✅ **FIXED** - Use `SystemTester.bat` and `SystemTester.ps1`. Missing function has been added.
+
+### AMD GPU not detected (multi-GPU systems)
+**Solution:** ✅ **FIXED** - Script now checks ALL registry subkeys (\0000, \0001, \0002, etc.), not just \0000.
+
+### GPU-Z appears corrupted
+**Solution:** ✅ **FIXED** - Launcher now validates file size (should be >1MB). Re-download if size is too small.
+
+### SMART test runs DISM/SFC instead
+**Solution:** ✅ **FIXED** - Incorrect code has been removed from SMART test function.
+
+### Windows Update check fails
+**Solution:** Ensure Windows Update service is running; may require administrator rights
+
+### GPU tests show "SKIPPED"
+**Solution:** 
+- For NVIDIA: Install latest drivers from nvidia.com
+- For AMD: Install latest drivers from amd.com/support
+- nvidia-smi is included with NVIDIA drivers
+- Some GPU tests don't require special tools and should always work
+- **Note:** AMD detection now properly checks all registry locations
+
+### Tests taking too long
+**Expected:** Some tests are intentionally slow:
+- CPU Performance: 10-30 seconds
+- Power/Energy Report: 15-20 seconds (admin only)
+- Windows Update Search: 30-90 seconds
+- DISM/SFC Scans: 5-15 minutes each (admin only)
+- DirectX Diagnostics (dxdiag): Up to 50 seconds
+
+---