wallet error
Error 0xc0000142
You may solve this by running version 1.0.1 (32 bits) in compatibility mode and as administrator (just google the error). On Windows 10 there is a troubleshooting mode that helps you with that.
There is also a new build which should not present any problem on 64 bits systems: 1.0.2 (already released in the pool site
https://pool.macscoin.site/#getting_started and in the download area
https://macscoin.site/downloads/).
Thanks for the report.