Open the C:\Windows\System32\drivers\etc and right click on “Hosts” file and select Properties then click the on Security button then click on users appears, click on Edit button and tick the box of “Full control” and click Ok. Move on and get rid out of it soon, start following the steps below to fix IDM fake serial number error.
This has what I have suffered myself too and had been finding the solution from a long time, and now I have found it, also just want to share it with you. The Internet Download Manager(IDM) makes our download jobs the easiest but while using it, you might have suffered from the error and sometimes it compelled us to uninstall it.
