[sophiemom]

Thank you in advance, for possible help, to fix my stupid mistake. Bottom line: all of my books all over my computer, including Kindle books, are suddenly being opened by Calibre, and the Windows 10 default apps by file type for most book types has been changed to Calibre. All books (most of which were never managed by Calibre) now have a Calibre icon. While I love Calibre, I do not want this change, which I caused myself, from lack of using the tool for a long time. My Calibre skills are very rusty!

Just a guess at what I did????: I THINK it may have happened when I tried to convert one epub book in my Calibre collection (no DRM) to mobi, to read on my Kindle. (I perhaps should have converted to AZW3, but that is probably irrelevant.) I may have even converted mobi to mobi, which may have been wrong, too. I thought I selected conversion of an individual book, but maybe I selected bulk by accident?? (Since I thought I was working with one book that was backed up elsewhere, I was not overly concerned if I did this incorrectly. That would have been fixable by me.) However, much to my shock, my massive book collection in many locations, including backup copies, is now all opened by Calibre, and I do not know what other damage, if any, this may have caused. I am afraid to try any fixes on my own, lest I do more damage.

If I try to change my Windows 10 default program by file type for all book types, I am given no choice of program other than Calibre. I do not know what those default programs were before my blunder, but I know it was not Calibre.

I just recalled that one of my Kindles was connected to my computer (USB) when the disaster occurred, while I was trying to transfer that one book, in the proper format, to that Kindle. As I recall, the instructions told me to disconnect the reconnect the Kindle from my computer. Therein may have sealed my fate, which may be worse than I realize. I do not know if I have damaged my Kindle (Voyage) as well. Some of the books on that device NOW have the Calibre icon, like those on my computer. The damage/mess up from my blunder that I can "see" has been described. If there are other consequences to my blunder, I may not find them until I try to access multiple books.

The explanation of my problem is probably not much better than my actions that caused this problem lol, but I happy to supply additional information, as needed. (All of the books in my Calibre managed collection are DRM free, and in both epub and mobi format. They have existed as a group, in Calibre, for many years.) I want those books to remain separate, managed by Calibre, but not all of the rest of my books, all of which are Kindle books. (I do not have the option or want to re-download all of the Kindle books.)

The large library that is open in Calibre now/during the blunder is “calibrelibrary1" which is located in my Windows User File. All of my other books are located in various locations on my computer; every one now shows the Calibre icon. My Windows 10 is up to date. My Calibre program was a couple of versions back, when the error occurred. It is current now. Thank you so much. I am happy to compensate for a fix for my foolish mistake.