Lock / unlock site collections (SharePoint Server 2010)

Apply locks to a site collection & prevent users from updating content or temporarily prevent users from accessing the site collection (temporary).

Follow these steps to lock or unlock a site collection.

To lock or unlock a site collection by using Central Administration

1. Verify that you have the following administrative credentials.
   
   • You must be a member of the Site Collection Administrators group for the site collection.
     
2. In Central Administration, click Application Management.
3. On the Application Management page, in the Site Collections section, click Configure quotas and locks.
4. If the site collection you want isn't already selected, in the Site Collection section, on the Site Collection menu, click Change Site Collection. Use the Select Site Collection page to select a site collection.
5. On the Site Collection Quotas and Locks page, in the Site Lock Information section, select one of the following options:
   
   • Not locked to unlock the site collection and make it available to users.
     
   • Adding content prevented to prevent users from adding new content to the site collection. Updates and deletions are still allowed.
     
   • Read-only (blocks additions, updates, and deletions) to prevent users from adding, updating, or deleting content.
     
   • No access to prevent users from accessing the site collection and its content. Users who attempt to access the site receive an error.
     
6. If you select Adding content prevented, Read-only (blocks additions, updates, and deletions), or No access, type a reason for the lock in the Additional lock information box.
7. Click OK.
   
   
   
   

   To lock or unlock a site collection by using Windows PowerShell

   1. Verify that you meet the following minimum requirements: See
   2. On the Start menu, click All Programs.
   3. Click Microsoft SharePoint 2010 Products.
   4. Click SharePoint 2010 Management Shell.
   5. At the Windows PowerShell command prompt, type the following command:
      
      Set-SPSite -Identity "<SiteCollection>" -LockState "<State>"
      

      Where:
      
      • <SiteCollection> is the URL of the site collection that you want to lock or unlock.
        
      • <State> is one of the following values:
        
        
        • Unlock to unlock the site collection and make it available to users.
          
        • NoAdditions to prevent users from adding new content to the site collection. Updates and deletions are still allowed.
          
        • ReadOnly to prevent users from adding, updating, or deleting content.
          
        • NoAccess to prevent users from accessing the site collection and its content. Users who attempt to access the site receive an error.