How do I get my keyboard and mouse to come back on?

[Microsoft Windows]

So I installed an app to check for outdated drivers and sure enough I had 27 of them, I started updating them and it was going good until the last 2 when I clicked update and it crashed my computer now I can’t use my keyboard or mouse. Therefor I cannot access a restore point or bios or anything like that. What do I do?

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