Is there a way to system restore from Bios on Windows 8.1?

Hello,
We just bought a Dell Venue 11 running 8.1, after a few hours of use the user forgot the password (or mistyped it when they changed it) and now we can't get back in. I wanted to know if there was a way to rollback the tablet without having access to Control
Panel. Any other thoughts about getting us back into this tablet is appreciated as well.
Thank you.

Hi,
If you've forgotten your Windows password, there are several ways to retrieve or reset it:
•If your PC is on a domain, your system administrator must reset your password.
•If you're using a Microsoft account, you can reset your password online.
•If you're using a local account, use your password hint as a reminder.
If you've tried these suggestions and still can't sign in:
• If you have Windows 8.1, you'll need to reinstall Windows.
• If you have Windows RT 8.1, you'll need to contact your PC manufacturer.
Alex Zhao
TechNet Community Support

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****Click the (purple thumbs up icon in the lower right corner of a post) to say thanks****
****Please mark Accept As Solution if it solves your problem****
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