Disable mounting of external storage

Setting the policy to True makes all types of external storage media (USB flash drives, external hard drives, SD and other memory cards, optical storage) unavailable in the file browser. Setting the policy to False or leaving it unset means users can use external storage on their device.

Note: The policy doesn't affect Google Drive and internal storage. Users can still access files saved in the Downloads folder.

Supported on: At least Microsoft Windows 7 or Windows Server 2008 family

Registry HiveHKEY_CURRENT_USER
Registry PathSoftware\Policies\Google\ChromeOS
Value NameExternalStorageDisabled
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

chromeos.admx

Administrative Templates (Computers)

Administrative Templates (Users)