If you want to download Gmail mailbox to the hard drive, then you can use the best tool for it. Try the TrustVare IMAP Backup Tool, which is a reliable method to download the Gmail mailbox to a hard drive. First, install the software and log in using your Gmail IMAP credentials. Then choose the mailbox folders you want to save. Select the output format such as PST, MBOX, EML, or PDF and browse your local system and set a hard drive location as the destination. Then press the backup button to start the procedure. All emails, attachments and folder structure are properly backup. This software makes backup Gmail fast and absolutely easy. It will work on all Windows OS versions like 11, 10, 8.1, 8, and 7 without needing any application.