Whatpulse on Windows 10

[dogiedog]

Whatpulse doesn't work anymore since I upgraded from windows 7 to windows 10, got this error from the app.log:
03-08-2015 01:01:02.303 INFO "Starting WhatPulse 2.6.2..."
03-08-2015 01:01:02.376 DEBUG Installed CrashRpt!
03-08-2015 01:01:02.389 DEBUG Database file: "C:/Users/Gebruiker/AppData/Local/WhatPulse/whatpulse.db"
03-08-2015 01:01:02.390 DEBUG Database check: "ok"
03-08-2015 01:01:02.390 DEBUG Opened database in: 1 ms
03-08-2015 01:01:02.396 DEBUG First time database use detected, setting version to: 5
03-08-2015 01:01:02.400 DEBUG Running WhatPulse as Administrator! :-)
03-08-2015 01:01:02.401 DEBUG Encrypted file: "C:/Users/Gebruiker/AppData/Local/WhatPulse/whatpulse.wpw"
03-08-2015 01:01:02.401 DEBUG Unable to open savefile
03-08-2015 01:01:02.401 WARN Failed to load ' "C:/Users/Gebruiker/AppData/Local/WhatPulse/whatpulse.wpw" ' - trying backup file
03-08-2015 01:01:02.401 DEBUG Unable to open savefile
03-08-2015 01:01:02.709 DEBUG Loaded application aliases

I ran whatpulse as an administrator as you can see from the log file.
Also tried to reinstall whatpulse several times with no success.

Anyone got an idea what this could be ?