Hi, while checking a places.sqlite Mozilla's bookmarks DB, I got pragma integrity_check; Error: disk I/O error that's on Windows 10 though [sqlite3 dll+tools SQLite 3.36.0 2021-06-18], whereas on (Debian, SQLite 3.16.2 2017-01-06) Linux the check yields just 'ok'. then following hunchs from othe bugs citing I/O error, tried: sqlite> vacuum; sqlite> pragma integrity_check; *** in database main *** Page 35: unable to get the page. error code=266 Page 34: unable to get the page. error code=266 Page 1275 is never used Page 1276 is never used (many times more) ... Error: disk I/O error whereas on Linux same sequence yields just 'ok'. Then again sqlite> vacuum; Error: disk I/O error retrying full check sqlite> pragma integrity_check; Error: disk I/O error retrying by single table sqlite> .tables moz_anno_attributes moz_historyvisits moz_keywords moz_annos moz_hosts moz_meta moz_bookmarks moz_inputhistory moz_origins moz_bookmarks_deleted moz_items_annos moz_places sqlite> pragma integrity_check(moz_bookmarks); ok sqlite> pragma integrity_check(moz_places); ok sqlite> pragma integrity_check(moz_annos); ok sqlite> pragma integrity_check(moz_anno_attributes); ok sqlite> pragma integrity_check(moz_bookmarks_deleted); ok sqlite> pragma integrity_check(moz_historyvisits); ok sqlite> pragma integrity_check(moz_hosts); ok sqlite> pragma integrity_check(moz_items_annos); ok sqlite> pragma integrity_check(moz_origins); ok but all again fails sqlite> pragma integrity_check; Error: disk I/O error the fs is NTFS, if that matters. Any cues? thx