I am using a Windows 10 HP laptop.
I have used ProtonVPN successfully for several months. For the last couple of days, I could not boot ProtonVPM. When I click on the trusty icon (or try to start the app from Windows), nothing happens. I thought the app was corrupted, so I uninstalled it, and reinstalled. It worked yesterday, but today, the problem still exists.
In something perhaps related, booting Windows in general has become very slow, sometimes taking 10 minutes. I finally found that during the boot, Windows Defender is doing a lot of activity. Is Defender doing some sort of search without my asking? Is there a way to suppress that. I am using Malwarebytes, but no third-party antivirus such as McAffee.