Hello and thank you for the report!
Everything looks honky dory and your system is as clean as a whistle.
Your antivirus is Kaspersky, along with F-Secure they are the most efficient on the market but no antivirus is 100% safe. In my opinion, most of the 50 malware on your computer came from torrent sites: uTorrent, Pando, Bit Torrent and Bears. Those p2p sites most often hide malware and there are the best mode for pirates, hackers and other malicious people to infect computers. If you invite them in, Kaspersky will not protest because you are the boss.
I suggest that your remove Malwarebyte so that it does not come in conflict with Kaspersky. You can always get it back if necessary.
These two keys, if you wish can also be deleted:
It was a pleasure helping you.