Windows might have named the file Pro.key.txt without showing the .txt extension. Enable "File name extensions" in File Explorer. The exact name must be Pro.key (case-sensitive? No, but exact name is safest).
Example: If "Settings file" shows C:\Users\John\Documents\MobaXterm\MobaXterm.ini, then your Pro.key must be in C:\Users\John\Documents\MobaXterm\
Pro Tip: You can change this folder. In the same Configuration window, click "Browse" under "Persistent settings directory". Place your
Pro.keythere and restart MobaXterm.
For system administrators deploying the software via scripts or GPO, the "location" on the hard drive is:
C:\Users\[Username]\AppData\Roaming\MobaXterm\
or
C:\Program Files (x86)\MobaXterm\ (depending on the installation type).
Critique: The file-based approach is secure and prevents users from accidentally typing a key incorrectly. However, it lacks the convenience of a cloud-based license management portal. If you lose the email with the attachment, there is no dashboard to log into to retrieve the key file again—you have to contact support. mobaxterm professional license key location
To summarize, the MobaXterm Professional license key location is not a single fixed path—it depends on your setup. However, the golden rule is:
The
Pro.keyfile must always reside in the same folder as yourMobaXterm.inisettings file.
By understanding this simple rule, you can back up, restore, or move your license without frustration. No registry keys, no online activation servers, no lost activations – just one small file in the right place.
If you are still unable to locate or activate your key, open a command prompt in the suspected folder and run:
dir Pro.key – that will confirm its presence. Then launch MobaXterm from that directory using .\MobaXterm.exe. That eliminates all path ambiguity. Windows might have named the file Pro
With your license correctly placed, you can now enjoy the full power of MobaXterm Professional: unlimited sessions, SSH tunnels, network tools, and the best X11 server on Windows.
Need further help? Visit the official Mobatek support portal or the r/mobaxterm community. Always download MobaXterm from the official website (mobaxterm.mobatek.net) to avoid malware-laden "cracked" versions that often contain trojans.
Your subscription period has ended. MobaXterm Professional includes one year of updates. The file remains valid only for that year. After expiry, the software reverts to Custom Edition but still runs. You must purchase a renewal (you get a new Pro.key file).
Contact Mobatek support or your reseller (e.g., Gumroad). Provide your order ID. They will reissue the Pro.key file. Never try to "generate" a fake key – the software phones home to validate. Pro Tip: You can change this folder
Right-click Pro.key → Properties → Security. Ensure your user account has "Read" permission. Without read access, MobaXterm ignores it.
If you used the .msi or .exe installer, MobaXterm runs from Program Files, but writes configuration (including licenses) to a user-specific data folder.
Default path for Windows 10/11:
C:\Users\[YourUsername]\Documents\MobaXterm\Pro.key
Note: Older versions sometimes used %APPDATA%\MobaXterm. Check both if unsure.