[Samba] Write Windows → Samba: "Access denied"

[Gilles]

Problem solved by removing AppArmor.

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root at debian-lenovo:~# cat /etc/apparmor.d/samba/smbd-shares
# autogenerated by update-apparmor-samba-profile 1.2+deb at samba start 
- do not edit!

"/usr/share/nginx/"   rk,
"/usr/share/nginx/**" rwkl,
"/my_data/"   rk,
"/my_data/**" rwkl,
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systemctl stop apparmor
systemctl disable apparmor
apt remove --assume-yes --purge apparmor
reboot
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Thank you!