I recommend you install https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer https://learn.microsoft.com/en-us/sysinternals/downloads/pro.

I recommend you install https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer https://learn.microsoft.com/en-us/sysinternals/downloads/pro... And take a look what DLLs have been loaded into your explorer.exe. Look for non Microsoft-signed ones.