I have windows 8. I removed the hard drive from an old laptop that was running windows 7. I placed it in a case to connect with USB. It worked the first two times that I used it. Now when I attempt to open it I get a message that says it is not accessible. It knows that it is there, the light is on, and I can feel it running, but nothing. I did a trouble shoot on it and it said everything was fixed but it still does not work. Any thoughts?

Method 1: Run the Hardware troubleshooter and check.

a. Press Windows key + C on your keyboard to show the Charms bar.
b. Type Troubleshooting and click Troubleshooting under Settings.
c. Now type Hardware Troubleshooter in the search option.
d. Click on Hardware troubleshooter to run the troubleshooter.

Method 2: Reinstall USB controllers.
This method resolves steps where the currently loaded USB driver has become unstable or corrupted.

a. Press Windows Key + X, click on device manager and hit enter.
b. Expand Universal Serial Bus controllers. Right click a device and click Uninstall. Repeat for each device.
c. Once complete, restart your computer. Your USB controllers will automatically install.
d. Check the issue.