Outside Europe, most copies of Windows already include these features, so the Media Feature Pack is irrelevant there.

To understand the Media Feature Pack, you first have to understand why it exists. Due to European Commission antitrust rulings and similar legal precedents in South Korea, Microsoft is required to sell versions of Windows that strip out media-related technologies to promote competition.

Here is the biggest flaw in the "N" edition architecture: Windows Updates often break it. Every time there is a major semi-annual feature update (e.g., moving from Windows 10 version 21H2 to 22H2), the Media Feature Pack is frequently uninstalled or disabled automatically. You have to go back into Settings > Apps > Optional Features and re-download it. This is a recurring annoyance for users of N editions.

If you have an "N" edition, install this immediately. If you are buying a new PC, avoid the "N" edition entirely to save yourself the headache.

After installation, Windows Media Player and missing codecs become available.

If you frequently need media features, switching to a non-N edition is cleaner—but that usually requires a full reinstall or a new license. For most people, installing the Media Feature Pack is the simpler, free fix.

Check manufacturer drivers. The pack enables WIA, but the scanner’s own software may need separate installation.