The procedure is really easy to follow and you can make this happen just in few seconds.
Follow below steps .:
1. Make sure you have installed the latest version of IDM
from the official creators website.
2. Now after you have downloaded and installed the latest version
just close the IDM and now go to start menu and make a search for Notepad.
3. Now right click on Notepad and than Run It As Administrator.
4. Now navigate to .:
C: > Windows > System 32 > Drivers > etc. > Hosts.
5. When you are in the etc. folder you might not see any files their
as you have click on show all files on the right hand side below.
6. Now open the Hosts file With Notepad and paste all the below lines ,
Like I have Pasted In Below Image.
I have pasted all the lines @ the end of the Hosts file,
you have to do same as above, now hit save.
8. Now when you have saved the HOSTS File
you can simply enter any serials from below in your IDM Registration page
9. Now enjoy your full version IDM without purchasing or
patching it totally genuine and totally legal.