If you removed Malwarebytes then it is not doing anything. Maybe your system is infected and you need to scan and check that.
You could have easily disabled the IP Protection and still left file protection going or turn IP Protection on and off as desired instead of removal.
Please try the following. Reinstall first if you have to.
Please try this on the computer that is having an issue making sure to right click and chose Run As Admin when needed.
1. Uninstall Malwarebytes' Anti-Malware using Add/Remove programs in the control panel.
2. Restart your computer (very important).
3. Download and run this utility.
mbam-clean.exe4. It will ask to restart your computer (please allow it to).
That should fully remove MBAM from the system at which point if you're still having an issue then you'll need to track down what else might be causing it.