@tuck-fheman posted a good guide here .
Also you might want to try @bitcube's new v0.11.0 miner for Windows :
https://github.com/btscube/steem/releases/download/v0.11.0/steem-win-x64-011.zip
Source: https://github.com/btscube/steem/releases
Remember to use your active private key when setting up the miner and pay attention to this part:
Other Options & Help
from @tuck-fheman's guide.
Go into config.ini and comment out (#) the mining-threads section like this ...
# mining-threads = 2
Restart steemd.exe and once you have synced back up to the blockchain, you should see something like this ...
2194613ms th_a application.cpp:438 handle_block ] Got 1 transactions from network on block 1878671
Now exit the program with CTRL-C, go back into config.ini and uncomment (remove the #) the mining-threads line you commented out earlier.
Please help! how to set up mining on multiple computers?