Having had a major computer crash which took all my data and emails with it, all the information has been recovered and I have been using Thunderbird to read my old emails. But having, I now find mistakenly, set Thunderbird to IMAP to act as my email client, because my ISP email addresses only have mailboxes of 1GB, the mailboxes rapidly get full so I need to delete emails which I don't want to do. Also, because my internet is fairly slow but adequate for me at about 6MB/sec, as all the "synchronisation" which I don't need involves uploading to the ISP mailboxes it takes time. Worse, any attempt to copy in old emails takes a great deal of time due to the aforementioned synchronisation thus it's uploading to the ISP mailboxes. I have several times uninstalled Thunderbird (having carefully saved all my emails) and reinstalled it but it defaults to all the old settings including as email client for my email addresses with IMAP settings. So please, how do I reinstall Thunderbird with POP3 settings? And no, I don't need synchronisation across all my devices, I need to keep all my emails old and new in one place on my computer, and then make backup copies elsewhere. My phone picks up emails when I'm out and about, I don't need all my emails on there. And please don't suggest I try gmail, it doesn't like my mobile number for some reason and refuses to use it for “verification”, asking for another mobile number (I don't have one and I'm not going to get one!) I'd be most grateful for some help. Thanks Dawn