: Some Windows users reported an error code 0xc000007b when trying to launch the 12.0.4 installer; this was often resolved by disabling "Mandatory ASLR" in Windows Security settings.
"Your clock is wrong" errors. Solution: Tor 12.0.4 uses a stricter tolerance for TLS certificates. Sync via w32tm /resync or manually adjust your BIOS clock. Tor Browser 12.0.4 Older Versions for Windows
Available as a full installer or automatic update from 12.0.3 Tor setup application not launching - Tor Browser Desktop Tor Browser 12
about:config in the browserapp.update.auto → set to falseapp.update.enabled → set to falseUsing any older browser version exposes you to known, exploitable security vulnerabilities (e.g., JavaScript engine bugs, fingerprinting leaks, or TLS exploits). For Windows 7/8: Use the latest Tor Browser 13