WORKAROUND
To work around this problem, follow these steps:
1. Click Start, click Run, type control admintools, and then click OK.
2. Double-click Local Security Policy.
3. Click Software Restriction Policies.

Note If no software restrictions are listed, right-click Software Restriction Policies, and then click Create New Policy.
4. Under Object Type, double-click Enforcement.
5. Click All users except local administrators, and then click OK.
6. Restart the computer.