Hi, I have a Windows 7 professional service pack 1. I got spammed once I connected to a WiFi network. It download so much stuff on my computer that it filled up a Tarabyte. Is their a way to factory reset my computer?

Please Help.
Thanks !
I didn't find the right solution from the internet.

References:
- https://www.computerforum.com/threads/help-with-my-windows-7.239085/
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