I've run into something that behaves similiar to what is being described. It's a data stealing trojan and bootkit virus called Alureon. Don't know where I've been picking it up, but have had it 3 times over the last 6 months. MS Essentials doesn't seem to pick it up on its quick scan, it only sees it on a full scan. Malwarebytes only sees part of it. The only way that I can remove it is to use a Kaspersky download called TDDS Killer. If you can get to that, give it a try at http://support.kaspersky.com/faq/?qid=208283363 Download it from another computer and load into the infected computer. Good luck.


Win11, Intel i7 7700K 4.2Ghz, 32Gb RAM, 2x1Tb HD, 500Gb NVMe, BIAB/RB 2025, MOTU 828MK3 audio, MOTU Midi Express, Yamaha Montage 7, DX7II, TX802, Motif XS Rack, Roland Fantom XR Rack, Oberheim Matrix 1000, VoiceLive3 Extreme, Kontakt 6, SampleTank 4.3