The Windows Repair wouldnt help with this directly since none of the repairs target anything to do with the actual account. The power reset, is different than a clean boot. And most laptops have a simple release to pop out the battery, never seen a laptop that didnt have that.
A refresh might do the trick, but it does normally keep the user account data, BUT if something is corrupted to start with then a refresh should reinstall everything Windows wise and hopefully help.
Shane