Norton von der telekom-kann geladen werden aber auf grund des Fehlers nicht aktiviert werden?
Hello amelung1. The first thing to note is whether you are logged into your system under an admin account. The error code 0xc0000005 is an "access violation" error code and is discussed here. I would first suggest that if you are NOT using an admin account to first change your account type then reboot. Try the install once again. If that doesn't fix the issue use the suggestions in the linked article above to remedy things.
Secondly, a hidden virus or malware can also cause this error. Download and run a full system scan using Malwarebytes. Have it remove whatever it finds and quarantines, reboot when done. Try to install once again and let us know your status.
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