Enable USB debugging (Settings > Phone info > Tap build 7x > Back button > Developer options > USB debugging)
If you don't already have ADB drivers installed, you may need to download
and install them (most PCs have them already, but trying installing
these if you're having trouble getting your PC to issue commands to the
phone via USB)
With your phone on, attach it to PC via USB
Run 'cai_dat_CWM.bat' from the CWM package
In the black command window that opens, type ACCEPT
Type T4
Phone will reboot into fastboot and you'll see commands being issued from the PC cmd window copying the temporary recovery
You may see some funked up images on your display for a bit. Remove
the USB cable and within 30 seconds should then see it booted into CWM