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To install ClockworkMod (CWM) Recovery on a device running Android 4.4.2 (KitKat) you generally need the CWM version 6.0.4.5 or higher to ensure compatibility with KitKat's file system Essential Prerequisites Unlock Bootloader

CWM does not support encryption or verified boot. Do not use on production devices with sensitive data.

The primary reason users sought out CWM for KitKat was its "Nandroid" backup feature. Unlike standard backups that save apps and photos, a Nandroid backup created a complete bit-for-bit image of the entire operating system. If a user tried to "flash" a new kernel or tweak system files and ended up with a "bootloop" (where the phone fails to start), CWM allowed them to restore the exact previous state of their phone in minutes. Furthermore, CWM was the standard utility for: Installing Custom ROMs:

Since there is no single "official" download site for all devices, you should look for the version tailored to your hardware on enthusiast forums: