Override access rights for user to a site

[Henk Prins]

Hi,

when a user is created he's being automatically added to some (office365) groups, for example 'Everyone'. For 99% of our employees this is OK. 

For some users we want to restrict access to all SharePoint sites which they do have access to as they are member of the group 'Everyone'. 

I don't know what happens if i delete the user from this group.

Question: is an option available to override the rights this user has been granted by being member of this group. Or is there an option in Office365 that i can restrict access 

[#2]

@Henk Prins 

I would recommend to setup the right permission groups in your SharePoint and grant access to the SharePoint to those 99% users. You may need to have a new group just for SharePoint. Think about Dynamics Groups in Azure.

Also you can easily remove user from Office 365 Groups, depends on your setting the are losing their access from email, Calendar or Teams (if you have Microsoft Teams) 

This will resolve the issue :)