BigSur/M1 clean install: Not able to install some apps now

LarsRas wrote:

Hi

Now I have problems installing some apps like Dropbox or Avira,

First, there is no reason to ever install or run any 3rd party "cleaning", "optimizing", "speed-up", anti-virus, VPN or security apps on your Mac.  This user tip describes what you need to know and do in order to protect your Mac: Effective defenses against malware and other threats - Apple Community.  

There are no known viruses, i.e. self propagating, for Macs.  There are, however, adware and malware which require the user to install although unwittingly most of the time thru sneaky links, etc.   

Anti Virus developers try to group all types as viruses into their ad campaigns of fear.  They do a poor job of the detecting and isolating the adware and malware.  Since there are no viruses these apps use up a lot of system resources searching for what is non-existent and adversely affect system and app performance.

There is one app, Malwarebytes, which was developed by a long time contributor to these forums and a highly respected member of the computer security community, that is desshoigned solely to seek out adware and known malware and remove it.  The free version is more than adequate for most users.  

Also, unless you're using a true VPN tunnel, such as between you and your employer's or bank's servers, they are useless from a privacy standpoint: Public VPN's are anything but private.  

So uninstall Avira according to the developer's instructions and any other of that type of app.

Very interested - you say have done several " Clean Installs " by what method ?

Have done many, many Clean Installs but to me a Clean Install is done via USB Installer and Wiping the Entire Drive and reinstallation from scratch. Have done only in Intel and have not yet has reason to attempt on the M1.

If you get a personalization error when reinstalling macOS on your Mac with Apple M1 chip