To disable the Autoplay in Windows 7, follow the steps provided below:
a. Click the Start and Input "gpedit.msc" in search box, and then click the result to open the gpedit.
b. Expand Administrative Templates >Windows Components > Autoplay Policies in order.
Then double click "Turn off Autoplay"
c. Click Enabled, and then select All drives so that you can disable Autorun on all drives.
Click Ok at last.
After restarting your computer, you have done all the needed work to disable Auto Play in Windows 7.
Also refer the below articles for more help:
Troubleshoot AutoPlay problems
AutoPlay: frequently asked questions
Change AutoPlay settings
Hope this helps!
Thanks and Regards,
Imran M – Microsoft Support
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Windows Updates will fix bugs in your system - AutoPlay always on for external disk drives after PC starts - Windows 7
Microsoft often releases many service packs and patches to replace and improve some of Windows system files that may be related to this error. You know viruses often attack files or systems that are outdated. That is why we should keep our system updated. Sometimes, your AutoPlay always on for external disk drives after PC starts - Windows 7 error may be fixed easily after you install all latest Windows updates.
- For Windows 8 Users
- Hold Windows key + X and then click Control Panel
- For Windows 7 and Vista Users:
- Click Start button and click Control Panel
- Click Check for updates
- Click install updates after the scan
System Restore - AutoPlay always on for external disk drives after PC starts - Windows 7
System Restore can return your PC's system files and programs to a time when everything was working fine, potentially preventing hours of troubleshooting headaches. It won't affect your documents, pictures, or other data. Please back up important changes(files, documents) before you perform system restore.