Q: Why does certain things not work?

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After changing the voltage regulator after my battery was completely dead since then my windshield wipers my blinkers my remote key to lock and unlock the doors does not work and neither does the heat is there a way I need to reset something can you please give me any kind of feedback please my windows to roll up now but that's about it

My car has 130700 miles.
My car has an automatic transmission.

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