We expect the number of QuickTime installation issues to increase. If you’re still getting all sorts of errors when installing QuickTime, maybe it’s time to switch to an alternative tool. Install a QuickTime Alternative for Windows

Hit the Apply button to save the changes.

Then select Run this program in compatibility mode for Windows 7.

Right-click on it and select Properties.

Open your Download folder and locate the QuickTimeInstaller.

Try this method and check if you can complete the installation process.

Running the QuickTime installer in compatibility mode may solve this problem. Try to install QuickTime again after you did all that. It’s not uncommon for antivirus and firewall programs to block certain installation files. The same goes for your antivirus and firewall. Then, close all the active programs by selecting End task. You can launch the Task Manager and click on the Processes tab. Since we’re talking about a non-Microsoft program, do close all the programs running in the background before downloading and installing QuickTime. Downloading the tool from third-party websites may bring along unwanted files that might break the installation process. If you did not download QuickTime directly from Apple, please do that now. Fix QuickTime Installation Issues on Windows 10 Download QuickTime from Apple

If, for some reason, you really need QuickTime on your device, but you can’t install it, here are some troubleshooting suggestions that may help you out. The latest Windows versions now support all the media formats and codecs that QuickTime enabled, including H.264 and AAC. As a matter of fact, Windows 10 users don’t actually need the tool.

Note: Apple no longer supports QuickTime 7 for Windows.

Quicktime installer