These may the problem with group policy
For enable task manager do the following.
There is a registry hack to enable or disable Windows NT TaskManager. The same registry hack applies to Windows 2000 and Windows XP.
Value: 1=Enable this key, that is DISABLE TaskManager
Value: 0=Disable this key, that is Don't Disable, Enable TaskManager
Enter gpedit.msc in the Open box and click OK
In the Group Policy settings window
Select User Configuration
Select Administrative Templates
Select Ctrl+Alt+Delete options
Select Remove Task Manager
Double-click the Remove Task Manager option
And as I mentioned above, since the policy is Remove Task Manager, by disabling the policy, you are enabling the Task Manager.
Then For enable the folder option
On the left, go to User Configuration.
Then, go to Administrative Templates.
Then, go to Windows Components.
Then, go to Windows Explorer.
Finally, on the right disable the option of "Remove the Folder Options menu item from the Tools Menu".