Did you use the Avira RegistryCleaner tool to "manually" (their words, not mine) uninstall Avira?
See Avira here -
Uninstallers (removal tools) for common Windows antivirus software—ESET Knowledgebase
Also, if you have malwarebytes or others installed, it is very likely that their kernel mode drivers are being loaded into RAM even though you are not necessarily running the program. These loaded drivers can cause clashes between the various security product drivers.
Check Sysinternals AutoRuns to assure that the app(s) are not starting up when the computer boots or when you login to Windows - (from Microsoft TechNet) -
Autoruns for Windows - Windows Sysinternals | Microsoft Docs
Unzip the autoruns zip file; extract into a directory in Documents or Desktop; go to that folder; RIGHT-click on autoruns.exe, select "Run as Administrator".
AutoRuns will begin scanning the Registry (status on bottom-left of AutoRuns screen). When completed, click on "Logon" tab at top; scroll through all logon entries; un-check any item(s) that you don't want to auto-start.
Un-checking an item simply prevents it from auto-starting. The app that you un-check can still be executed at anytime by you manually.
Regards. . .
jcgriff2
EDIT: Check the output of Sysinternals Load Order (loadord.exe), which shows you drivers that are loaded starting with turning your system on through logon to Windows. AutoRuns may not pick these up.
From Microsoft -
LoadOrder - Windows Sysinternals | Microsoft Docs
Run LoadOrder as Administrator as well.
EDIT #2: You may find it easier to download these stand-alone apps from Live Sysinternals -
live.sysinternals.com - /
None of the dozens of Sysinternals apps require installation. They are all "stand-alone" apps.
John
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