: Boot from a recovery USB, select Repair your computer > Troubleshoot > Startup Repair . This specifically targets missing boot-level DLLs. Use System File Checker (SFC) : Open Command Prompt as Administrator. Type sfc /scannow and press Enter . This replaces corrupted system files with healthy copies.
: The most common cause is a faulty USB drive or a corrupted ISO file. Download a fresh Windows ISO directly from the official Microsoft website and use the Windows Media Creation Tool to create a new bootable USB drive. Try a Different USB Port