What is Google Nexus 7 ClockworkMod Touch Recovery (CWM)? You can do lot of things with Nexus 7 ClockworkMod Touch Recovery Mode. Besides normal recovery features like wipe data / factory reset and wipe cache partition, CWM has addition features like install zip from sdcard, backup and restore, mounts and storage, advanced… You can use CWM to install custom modification, kernel and ROM too. A must installed tool if you want to get more out of your Nexus 7.