To find an IDM serial number, visit the Internet Download Manager serial number retrieval page. Enter the email address you used to purchase IDM, and type in the security code that appears in the box. Click the Submit button, and wait for IDM to send you an email with your serial number.
IDM only provides serial numbers to the original registration email; if that address is no longer active, or if you cannot log in, you must purchase a new IDM license to download the program. If your email is not associated with a previous purchase, the IDM website returns an immediate notice. If you do not see the email within an hour, check your spam folders.
If you still have the computer on which you originally installed IDM, the serial number may still be stored in the registry. To find it, you must download a key-finder program. Once the program is installed on your computer, set it to scan your hard drive. The program should return a list of all product keys and serial numbers; look for the IDM serial number in the list. The serial number may be identified by IDM, Internet Download Manager or the name of the IDM parent company, Tonec.