Computer does not recognize external hard drive - MATSWiz.exe - System Error

Computer does not recognize external hard drive - MATSWiz.exe - System Error

I cannot get my computer to recognize my external hard drive.
I was brought to this page after a trying to install and run Microsoft Fix It and I kept getting an error msg that was addressed before.
So with that being said, here is the peoblem, I have a
brand new HP model HPE-410f (windows 7 SP2/ 64x bit), and a Verbatium USB1TB etrernal hard drive.
Yesterday it worked just fine, today however, when I went to " my computer" and it was gone....??? It showed the C: and D: drives, but not the external...? SO
my adventure began trwing all these trouble shooting things and nothing seems to work.
Now the external hard drive does not make any clicking sounds, and when I uninstall and reinstall the drivers, it says that the device was installed properly.
I have tried every USB port and that hasnt worked either.
I have tried method one that Debleena
posted and that did not work.
I get the error before the program fully installs so method 2 didn't work.
Now I know the media that is on there is still good because it plays just fine through my PS3.
If there is anything that can be done, please let me know.

Anwsers to the Problem Computer does not recognize external hard drive - MATSWiz.exe - System Error

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Try and updating the drivers for Windows 7 for the external hard drive.
See if that makes a difference for it to be seen.

Your best bet is to go to the External's hard drive manufacturer and dowlnload the Windows 7 driver fort the external hard drive.
 
Please reply back with an update.


Thanks,

Marilyn

Note: It is recommended that you back up your files and folders before attempting this step:

• Move the mouse cursor over to the upper right side of the screen.
• A menu will pop up on the left. Click on the "Settings" feature on the menu.
• On the Settings window, click on the "Change PC settings."
• Now, left click on the "Update and recovery" feature.
• For the next step, left click on the "Recovery" feature.
• There is an option here saying "Refresh your PC without affecting your files." There, left click on the "Get started" button.
• Now, follow the instructions on the screen to finish the Refresh process.
• After the Refresh process has finished restart your Windows 8.1 or Windows 8 device.
• Check again to see if the error Computer does not recognize external hard drive - MATSWiz.exe - System Error has been fixed.

If you do not possess the technical expertise required to accomplish this yourself or do not feel comfortable doing so, download and install a powerful automated tool to get the job done.

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