T430 Thinkpad a disk read error occured Windows 8.1 from my USB

Oct. 5, 2021, 1:25 a.m.

Hello friends , this is my issue I would really appreciate if anyone could help me out with my Lenovo T430 Thinkpad Laptop , I went into Command Prompt before installing my Windows 8.1 from my USB and went into
-Select Disk 0 (my core files etc OS)
-It was originally set to GPT, I accidentally changed it to MBR and I believe I cleaned it and created a new partition
Now after exiting and restarting I cannot boot from my Windows 8.1 Installation Disk
I get the following errors now as shows below I the photos.
I cannot seem to find a way to get back into Command Prompt to simply fix the issue by reverting my Disk 0 from MBR , Back how what it originally was when it was working , GPT

Oct. 5, 2021, 3:50 p.m.

In BIOS settings, enable OS optimized settings and restore defaults.
Then the entire PC will recognize GPT/UEFI.

Oct. 5, 2021, 12:49 a.m.

If you did it correctly, the splash screen will only have Lenovo logo, and your UEFI based USB drive will boot properly.

Oct. 5, 2021, 10:58 p.m.

So Jiang have right!

But why you don’t install Win10 ?
Works fine. My T430 1Tb 16 Ram win10 and it’s run perfekt :)

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