Powershell Script Execution

Hi,

       I am trying to execute powershell script(.ps1 file) in one server using windows powershell, but its showing error like this

File C:\users\cchiadmin\Scriptfinal.ps1 cannot be loaded because the execution of scripts is disabled on this system. P

lease see "get-help about_signing" for more details.

At line:1 char:18

+ .\Scriptfinal.ps1 <<<<

    + CategoryInfo         : NotSpecified: (:) [], PSSecurityException

    + FullyQualifiedErrorId : RuntimeException

because this server don't have sharepoint 2010 installed in it. But in another server it is working because it has sharepoint 2010.

what should i do for this issue? Kindly suggest me for this issue..

Regards

Priyanka