The following article will teach you how to uninstall/install the new Epic Online Services, since its way different than the old EAC. Please note that it should be performed only when experiencing issues with the EOS.
Open up the Windows Explorer (or Press Windows key + E) and go to the following directory
Left Click in the Address Bar
Type in “cmd” and hit enter
In the window that pops up run the following command to uninstall EOS:
EasyAntiCheat_EOS_Setup.exe uninstall 55c7dc1d520f4cba8ff261b85059f963
Then this command to install EOS:
EasyAntiCheat_EOS_Setup.exe install 55c7dc1d520f4cba8ff261b85059f963