Hello, Old thread but new issue for me : KPM Chrome extension does not accept (correct) password any longer ! The problem ‘seems’ to have appeared after a w10 update. --- I’ve tried all suggested tips but to no avail : Try to Exit from KPM, then launch it as Administrator. Does it fix the issue? After this restart KPM as usual (launch KPM as usual, not as Administrator). Open cmd.exe as Administrator, then execute the command kpm.exe -RegServer Then reteset the issue again. Remove KPM via Control Panel, reboot, install KPM from the separate installerNeedless to mention that the KPM extensions for Edge and Explorer work perfectly and that my KPM login password has not been changed. --- Any update on this recurrent issue ? Do I have to open a new topic for that purpose ? Note : I am a pro user with a valid licence number (6 users)