When logging on to the Report Manager or Report Builder to manage, create or install custom report packs, the following error is shown:
User does not have required permissions. Verify that sufficient permissions have been granted and Windows User Account Control (UAC) restrictions have been addressed
This is a known issue with Microsoft Reporting Services when User Account Control (UAC) is enabled on the server. By default the local administrators are only given the role of "Content Manager", which does not allow for all operations.
The easy solution is to disable UAC, but below is the solution for how to solve it without disabling UAC.
For further reference, refer to the following discussion.
1. Launch Internet Explorer as administrator (right click the shortcut and click "Run as administrator").
3. Click "Folder Settings"
4. Click "Edit" next to the "BUILTIN\Administrators"
5. Check all the options and click "Apply"