I have an Acer Iconia 512 originally with Windows 8.1. Now I have W10t build 9926. How can I restore my tablet to original?

[James Scheinbaum]

I have an Acer Iconia 512 originally with Windows 8.1. Now I have W10t build 9926

I don't seem to have metro anymore. So now I can't access pc settings to upgrade.

Is my tablet not able to handle this?

If not is there a way to restore my tablet to original?

Thanks.