No. You can skip entering a product key during installation. However, some features will be limited, and you will see activation reminders. If your computer previously had a valid Windows 10 license (digital license tied to your hardware), it will activate automatically when you install the matching edition.

It is almost certainly malware or a typo . Avoid it completely.

matches that exact filename. It does not appear in official Microsoft, GitHub, or common software databases.

I cannot produce a report recommending or facilitating the download of something named v123sfdexe for Windows 10. Here’s why:

Select your save location (ensure at least 8GB free space) and wait for the download to complete. The ISO file is approximately 4-5GB.

Follow the prompts to install a clean, 100% safe version of Windows 10. Method 2: Run Windows 10 Unactivated