May be it's me, when I installed the latest MR2 on to my old laptop, the virus definitions would not update, kept failing, then I had to click to start again. When I removed HMPA rebooted it updated. I have installed this new version as I really like HMPA and think it's an excellent product and all is fine. I did have Malwarebytes Anti-Exploit and CryptoPrevent installed, could that be why? Also sometimes, when I click scan (I have HitmanPro installed before I installed HMPA/have year license key for it) it get's to 99% and goes no further?