since 15.04.2016 my Avira reports a TR/Dropper.MSIL.Gen [trojan] several times per day. The folder (C:\Windows\Installer\) always stays the same but the name changes, e.g. C:\Windows\Installer\MSIF58E.tmp and C:\Windows\Installer\MSI68F4.tmp.
My boyfriend claimed to can fix the problem and installed various security software, Malwarebytes, AdwCleaner etc. It didn't help and I hope it didn't make the problem worse.
I have Windows 10, 64-Bit.
"Your message contains 132259 characters. The maximum number of allowed characters is 100000." Therefore, I attached the FRST files to this message.
Thanks for your help!