I have read some posts about users having that problem, but i don't know how to cope with it, besides suggesting uninstalling and reinstalling EF OR
creating a direct shorcut for EF.
I myself have never got this bug before, perhaps some file is corrupted.
You can try to check in your registry to see if Eastern Front registry is there:
Open regedit(start menu->run->regedit) then look for this path:
If you have 32 bits OS -> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Eastern Front
If you have 64 bits OS aka x64 -> HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Eastern Front\
Right click the folder and export it. Compress it as zip and please upload it here.