If you are the owner/administrator of the current OS, then you can take ownership of any installed drive.
This can be annoying.
Try this:
- Right click on the drive.
- Select the "Security" tab.
- Click on the "Advanced" button.
- Click on the "owner" tab.
- Click on "edit".
- Don't just select "Administrators", select your specific account name.
- For added benefit, click back