Use the Map Network Drive wizard, to map the site as a network drive

Before starting the Map Network Drive wizard, briefly return to SharePoint and copy the full address of the document library that is to be mapped.

Keep this on your clipboard for Step 2 of the following procedure.

To access the Map Network Drive wizard, proceed as follows.

1. Open File Explorer, and click Map network drive.

Note:
When you click Map network drive, you may be prompted with another dropdown menu. If so, then from the dropdown options, click Map network drive.

The Map Network Drive wizard opens.

2. In the Folder text box, paste the full address of the SharePoint library that is to be mapped. Then, if necessary, remove any lower level sections of the address as highlighted below.
3. Tick the Connect using different credentials checkbox.
4. Click Finish.