* lisp/url/url-parse.el (url-generic-parse-url): Remove prefix / when a file URI's filename starts with a single letter followed by a colon and a slash or backslash. (url-recreate-url): Mirror the change applied when parsing, so the URL is recreated properly on MS-Windows. * test/lisp/url/url-parse-tests.el (url-generic-parse-url/ms-windows-file-uri-hanlding): New test. (Bug#76982)