If you have tried new media and different ports, the error might stem from faulty hardware. 1. Test Your RAM Defective RAM is a notorious cause of the 0x80070570 error.
The Windows image file you downloaded is incomplete or corrupted.
Boot from your installation USB and select (not "Install Now"). Go to Troubleshoot > Advanced options > Command Prompt . Run the System File Checker : sfc /scannow Use code with caution. Copied to clipboard
If you have a spare drive, try installing Windows on it to rule out a broken hard drive. Phase 4: Use Command Prompt (Fixing Partition Issues)
Before diving into more complex solutions, it's worth taking a moment to rule out simple issues that can mimic the WinSetup.dll error.
The software used to create the bootable drive (like Rufus or Media Creation Tool) encountered an error.
The USB stick itself is failing, or the USB port is not supplying consistent data.
Finding yourself stuck with the "Windows could not load the required file winsetup.dll
Understanding the root cause can help prevent the problem from recurring. The error is most often caused by one of the following:
Plug the USB drive into a different port (preferably a USB 3.0 port directly on the motherboard if using a desktop PC).