This information provides instructions for updating QuickTime to the most recent version.
Mac
Step 1. Open QuickTime.
Step 2. Click on QuickTime Player > Update Existing Software.
Windows
Step 1. Open QuickTime.
Step 2. Click on Edit > Preferences > QuickTime Preferences.
Step 3. Chose the Update tab.
Step 4. Click on Update.
Or
Step 1. Open QuickTime.
Step 2. Click on Help.
Step 3. Click on Update Existing Software.