@johnpeck77 I recommend you try this keyboard & mouse on another computer or use an alternate keyboard & mouse with this computer to identify the issue, if an alternate kb & mouse doesn't work on this computer, I suggest you update the USB/Chipset drivers and the BIOS: click here to find and install the same.
Once done, try the below steps:
If two or more characters display when pressing a key, adjust the key repeat delay.
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In Windows, search for an open Control Panel. and click Keyboard control panel.
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In the Control Panel search field, type keyboard, and then select Keyboard from the search results.
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On the Keyboard Properties window, select the Speed tab, and then drag the slider under Repeat delay to Long, and then click OK to save changes.

If the wired keyboard is still not working, test the keyboard for key or hardware failures. You can test the keyboard for key or hardware failures using HP Hardware Diagnostic tools that come with your computer. Go to HP PCs - Testing for Hardware Failures for more information.
NOTE:
During the UEFI testing you test the keyboard by pressing each key on the keyboard. The corresponding key on the screen turns blue. If keys are pressed multiple times, the key colors cycle through blue, purple, and green to indicate the key presses. If any key that was pressed only once shows a different color than blue, this is most likely a hardware issue with the keyboard.
Let me know how that pans out,
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That said, I will have someone follow-up on this to ensure you've been helped,
Just in case you don't get back to us within 24 - 48hrs, and have a good day, ahead.
Riddle_Decipher
I am an HP Employee