EPERM error


I read another topic about this but it didn’t solve my problem.
So When I’m trying to update the airac I’m getting this error: EPERM, operation not permitted mkdir 'C
It is installed in the default folder, I watched tutorials but nothing helped. I’m seeing things about permission but everything seems fine there. I saw that I need to try remove all files in /temp. Is it really all files or just the navigraph folder in it. (see screenshot). Can someone just explain this well and clear please.
Thanks in advance

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Apologies for delay. Is this resolved or still a problem?


A post was merged into an existing topic: Pmdg 737-900