If you’re still running Apple’s QuickTime media player on your Windows PC, then you’ve got a problem on your hands. Two, to be exact.
Researchers at the cybersecurity firm Trend Micro (TMICY) recently discovered two critical vulnerabilities in the software’s code. When the company alerted Apple (AAPL) in November, the electronics giant said it would stop supporting the program on Microsoft (MSFT) machines. The security firm’s advice: Uninstall QuickTime, quickly.
Get Data Sheet, Fortune’s technology newsletter.
The bugs—more technical information on the pair of pests can be found here and here—could allow hackers to hijack affected computers, the U.S. Department of Homeland Security’s Computer Emergency Readiness Team warned last week. The sooner one ditches the software, the better.
Apple has provided instructions on its website detailing how to remove the software from your PC. You can follow the instructions there, or follow Fortune’s condensed version below.
Don’t worry, it’s simple. Here are the steps:
- Click the “start” icon.
- Click on “settings” (or “control panel” on Windows 7).
- Click on “system” (or “programs” on Windows 7).
- In “apps and features” (or “programs and features” on Windows 7), locate QuickTime.
- Select “uninstall.”
Waste no time, Windows users: The quicker you ditch QuickTime, the more secure you’ll be.
Apple did not immediately respond to Fortune‘s request for comment.
Sign up for the Fortune Features email list so you don’t miss our biggest features, exclusive interviews, and investigations.