However, the "highly compressed" nature of these files—often utilizing advanced archiving tools like KGB Archiver or 7-Zip—comes with a heavy cost in stability. To reach a size as low as 5 MB or 28 MB, critical system files are often deleted rather than just compressed. This frequently results in "DLL missing" errors, broken internet connectivity, or the inability to install basic software like web browsers or antivirus programs. Furthermore, because these are unofficial distributions from third-party forums, they rarely receive security updates. This leaves the user vulnerable to malware that may have been intentionally embedded in the custom build or simply able to exploit an unpatched system.
: You can legally download official ISOs from Microsoft if you have a valid product key. Windows 7 alienware highly compressed 5 mb free 28