2009Off Topic forum
Quicktime blocked by Windows DEP after Vista Service Pack
17 years old. Gear and prices may have changed since.
What the thread found
- Data Execution Prevention in Windows Vista can prevent Quicktime from running after a Service Pack update
- Adding an exception for Quicktime through System Properties (sysdm.cpl > Advanced > Performance > Data Execution Prevention > Add) may resolve the blocking, though success is not guaranteed
Depends on
- The workaround did not work for the original poster despite following instructions correctly
- Problem appears specific to Vista with a particular Service Pack version
- Unclear whether the issue stems from Microsoft or Apple implementation