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# Launch Error - StartService EasyAntiCheat\_EOSSys failed with 5.

<figure><img src="/files/isXB53uP2hBsvuPqwlAJ" alt="" width="398"><figcaption></figcaption></figure>

1. Run the [EAC Fix batch](https://github.com/livingflore/BattleBitEACFix/releases) (BattleBitEACFix.bat file).
2. Grant EAC full access for application packages in registry.

<figure><img src="/files/lqrmfwsVrWQYEwfiS5lB" alt="" width="306"><figcaption><p>Press Win+R, type <code>regedit.exe</code> and press Enter.</p></figcaption></figure>

<figure><img src="/files/0mmpCqJfXGHfdfCXyWaA" alt="" width="342"><figcaption><p>Press Yes.</p></figcaption></figure>

<figure><img src="/files/pL1FZk8GW8sZiCknghqy" alt=""><figcaption><p>Go to <code>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EasyAntiCheat_EOS</code>.</p></figcaption></figure>

<figure><img src="/files/J55x4KRADrqwdLtnUKff" alt=""><figcaption><p>Right click on <code>EasyAntiCheat_EOS</code>.</p></figcaption></figure>

<figure><img src="/files/DcvAQY1QhYKdOuZ0ussS" alt="" width="325"><figcaption><p>Click on "Full Control" Allow checkbox under "ALL APPLICATION PACKAGES" group.</p></figcaption></figure>