1) Download JDownloader 2
32 bit
Or 64 bit
2)Just Go to Jdownloader Directory>> cfg
Jdownloader >> Cfg >> org.jdownloader.settings.AccountSettings.accounts.ejs
3) Replace the org.jdownloader.settings.AccountSettings.accounts.ejs with the file you have downloaded and its done..!!!
Note:- Backup your old org.jdownloader.settings.AccountSettings.accounts.ejs