Back up your data. Enter BIOS/UEFI (usually F2, Del, or F12 during boot) and disable Secure Boot . Enable CSM/Legacy Boot if your ISO isn’t UEFI-compatible.
Archived "All-in-One" (AIO) ISO files containing 32-bit and 64-bit Windows 7 editions remain available through community resources like the Internet Archive, as official Microsoft download links are no longer available. These community-hosted files, often pre-integrated with Service Pack 1, allow users to select from various editions during installation. Download and verify Windows 7 ISO files at Internet Archive Windows 7 All In One : Free Download, Borrow, and Streaming Windows 7 Iso File Download 32 64-bit All In One -BEST
Disclaimer: Please ensure you have a valid license key to activate your copy of Windows. Windows 7 reached its End of Life (EOL) on January 14, 2020, and Microsoft no longer provides official security updates or support. Back up your data