Hello Kendra_505! I'm Gunasekar and I'd be happy to help you with your question.
Yes, you can use your Windows Computer without a Microsoft account. You can create a local account during Windows setup. This account doesn't require a Microsoft account and allows you to access your PC without needing an internet connection.
How to set up Windows 11 without a Microsoft account -
(Related article for your reference)
https://www.windowscentral.com/how-set-windows-11-without-microsoft-account
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However, you will not be able to use most of the Microsoft services like Microsoft store, OneDrive, and other applications as well. Edge can be used without a Microsoft account, and you can set up Windows Hello with a PIN or fingerprint instead of a Microsoft account login. To enjoy a full Windows experience, you will need a Microsoft account on the device.
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I hope this information helps. If you have any questions, please let me know and I will be happy to help you further.
Best regards,
Gunasekar N