Do NOT install NOX
NOX installs "segurazo anti-virus software" and "chromium", both of which are malware. The latter's pretty easy to get rid of, but the former is a real pain and keeps coming back. Essentially, they eat up the PC's ram so that it slows down substantially and often crashes. To get rid of it, install malware bytes and quarantine/delete it (you don't need the premium)- this was the only way that would remove it for good from my experience. Hope this helps. EDIT: just to emphasise the point, Nox itself isn't the malware. When you install it, it installs the the aforementioned programs. It's not even that great of an emulator - bluestacks is much safer and better.