Thanks for bringing this to our attention. We design our software to ensure that partner software downloads don't occur without approval by the user. But given your report, we’ve also double-checked this particular offer, and have determined that it cannot be installed without user approval.

Epic Scale is a cryptocurrency miner that uses a portion of your CPU cycles to contribute to the mining effort. A portion of the proceeds from this effort go to philanthropic initiatives. Please visit http://www.epicscale.com/ for more information. Epic Scale is a great partner for us to continue to generate revenue for the company, while contributing funds to good causes. In the future, Epic Scale plans to contribute CPU cycles to other initiatives, such as Genome mapping and other academic studies that require a great deal of processing power.

As Groundrunner stated, it's easy to uninstall the software via Add/Remove Programs. Per the Epic Scale CEO's response in comments on the link you shared, the only data left in ProgramData\Epicscale is a simple UUID (Unique User ID). This remains so that in case the software is reinstalled, BitTorrent would still be associated with the user. Feel free to delete this folder. You certainly won't see any persistent auto-reinstalls of the software, it will be gone from your machine for good.