Official download page:
https://mikrotik.com/download/winbox
In case a router has access to the Internet:
System > Packages > Check For Updates > Download & Install
In case a router doesn't have access to the Internet:
Download firmware file from site
https://mikrotik.com/download/routeros
Drop down .npk file to File List
System > Reboot
System > Routerboard > Upgrade
System > Reboot
The device boots with a completely blank slate:
Show only user-edited configuration, RouterOS defaults are omitted.
System > Reset Configuration > No Default Configuration > Reset Configuration
Show only user-edited configuration, RouterOS defaults are omitted:
export
System > Clock
System > SNTP Client
Keeping router up-to-date
Disable Network Neighbor Discovery Protocol
Disable unused service
Change admin account name
Files > Backup
System > RouterBOARD > Upgrade
System > Packages > Check For Updates
MNDP(MikroTik Neighbor Discovery Protocol) - allow us to find devices compatible with MNDP (MikroTik Neighbor Discovery Protocol), CDP (Cisco Discovery Protocol), or LLDP (Link Layer Discovery Protocol) in the Layer2 broadcast domain.
Recommendation: Disable for outside interfaces.
Removing an interface from the interface list will disable both the discovery of neighbors on this interface and also the possibility of discovering this device itself on that interface.
https://help.mikrotik.com/docs/display/ROS/Neighbor+discovery