To save space, creators strip out Windows Update, security defenders, and essential drivers (like Wi-Fi or USB 3.0 support).
If a user searches for “Windows 7 Ultimate 64 Bit Highly Compressed -9.28 Mb” and finds a file, what could it actually be? Here are the most common realities: Windows 7 Ultimate 64 Bit Highly Compressed -9.28 Mb
Your computer could become part of a DDoS botnet (e.g., Mirai variant on Windows) without your knowledge. To save space, creators strip out Windows Update,
or contain "junk" data designed to look like a large file when extracted but which never actually functions as an OS. Risks of Using Compressed/Modified OS To save space