SharePoint 2013 Excel WebPart

I created new excel webpart. I got this error :

The trial period for SharePoint Server has expired.

I researched on net and i found this solve :

Run--> inetmgr-->Application Pools--> SharePoint Central Administrator--> Advanced Sttings--> Identity (change the account)

Or add the current application pool identity account to local Administrator group.

Run "iisreset"

Still you have same issue, there might be some share point secure sources not configured correctly . You need to run "SharePoint Configuration wizard" or run "psconfig.exe -cmd secureresources" command(c:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\Bin\psconfig.exe -cmd secureresources)

I checked application pool identity and run iisreset. But the problem didn't solve. Then i tried the second advice. When I click the psconfig.exe, it's closing instantly. So I'm not running "cmd secureresources" .

How can I solve this problem with another way?