For new altcoin miners don't forget to do this:

1) Turn off Window Defender
if ON, some cases of hashrate dropped when WinDef doing scans and the software miner as a detected virus, it is a false alarm.

2) Don't forget to increase Virtual Memory size at least 16 GB, bigger is better
some low VM cases can make a crash or freeze for software miner  even Window

3) Turn off sleep mode in the Window
if sleep mode in "ON" setting can make the software miner stop when "sleeping".