Open Report Manager without Run As Administrator option

Below are steps to avoid "Run As Administrator" option while opening Report Manager

Open a browser window with Run as administrator permissions. From the Start menu, click All Programs, right-click Internet Explorer, and select Run as administrator.

1. Click Allow to continue.
   
2. Open Report Manager link
   
3. Click Tools.
   
4. Click Internet Options.
   
5. Click Security.
   
6. Click Trusted Sites.
   
7. Click Sites.
   
8. Add http://.
   
9. Clear the check box Require server certification (https:) for all sites in this zone if you are not using HTTPS for the default site.
   
10. Click Add.
    
11. Click OK.
    
12. In Report Manager, on the Home page, click Folder Settings.
    
13. In the Folder Settings page, click Security.
    
14. Click New Role Assignment.
    
15. Type your Windows user account in this format: \.
    
16. Select Content Manager.
    
17. Click OK.
    
18. Click Site Settings in the upper corner of the Home page.
    
19. Click security.
    
20. Click New Role Assignment.
    
21. Type your Windows user account in this format: \.
    
22. Select System Administrator.
    
23. Click OK.
    
24. Close Report Manager.
    
25. Re-open Report Manager in Internet Explorer, without using Run as administrator
    

Click to get more information:

http://msdn.microsoft.com/en-us/library/bb630430.aspx