While Installing H&R Block Tax Software, I Get a DOS Mode (MAC) Error. What Should I Do?
When you’re installing your H&R Block Tax Software, you might get an error message that says, “This program cannot be run in DOS mode (MAC).” This means the Windows version of our H&R Block Tax Software installer is being downloaded to your system in error.
Fixing a DOS Mode (Mac) Error
To fix the issue with DOS mode Mac, contact an H&R Block support specialist for additional assistance at 800-HRBLOCK (800-472-5625).
We are no longer offering H&R Block tax software CDs, but there are other ways to download our software. Learn more about your tax filing options.