The t520 Thin Client does not support Windows 8 32-bit, so I am assuming you mean WES8 64-bit.
There is a recently updated WES8 image for this platform and I'm told it resolves a BSOD issue. If you want to try it, download and install the ThinUpdate tool Softpaq from the t520 drivers page. You can install ThinUpdate on any Windows PC connected to the Internet. It will download the image and build a bootable USB key (if you're not familiar with the tool.)
Look for the images with the + symbol.
--Keith