It is important to exercise caution when using custom ISOs like :
: The version number 221290 likely refers to a specific release date (December 2022) or a customized build number based on a Windows 10 or 11 base. Security Warning
While there is no single "official" article for this specific build string, it belongs to a category of custom ISOs often found on forums like or Archive.org . General features of these builds include: