Remove Internet Download Manager has been registered with a fake serial number Error [S.C.H].

I am sure many of us are too much dependent on Internet Download Manager a.k.a. IDM. The main reason didn’t permanently switch to linux was IDM. I mainly use it for batch downloading and download streaming videos.



I tried re-patching, reinstalling, but this annoying message was persistent. It was so annoying that it keeps popping up until you exit  IDM.



Below tutorial Shows