I think i've had success by disabling bitdefender. However I have been very disapointed with the Bitdefender 2018. I'd been so happy with BD that I gave in and paid for the upgrade.

light fast, non intrusive, free.Īfter the forced upgrade I was then forced to pay for the upgrade as bitdefender was interfering with displayfusion causing massive RAM usage and the only way I could see to whitelist was do so with the paid version. It is a shame because the 2017 version was everything I wanted in an A.V. Since then I upgraded the CPU and motherboard - not due to this issue - but the problem still continues. System was a I7-6700, 16GB Ram Running Win 7 64bit. Occurance somewhat random but - would often be about once every 15-20 minutes and be over very quickly, although it seemed to mostly only happen if there was some activity rather than just leaving the computer idle. For a while I kept thinking it was a dirty mousepad until I started using process explorer. In the latter the main thing i'd notice was the mouse becoming juttery for for maybe 2 seconds. It would cause whatever I was doing, especially gaming to lag for a few sections, but even did it during regular web browsing activity. I have/had an issue with the 'system:4 process' (hardware interrupts) spiking CPU usage at 100%. Hello I am posting this to see if anyone has the same issue and/or help anyone else.

Bitdefender 2019 update messed up mouse