Go to Pure: https://pure.knaw.nl/
Follow these steps:
- Go to Master data and click on Users,
- Click on the Add filter button,
- Select Organisational unit,
- Search the name of your institute and select it,
- Check the list of users and decide whether to keep or remove them,
- click on the user name, among others check the metadata and role and associated person (you can use this to check which person is related to the user account),
- if you decide to remove the user, there are two options: delete (not suggested) or lock user account (it is suggested to use this option).
- click save.