2 steps if you want to read - otherwise go to #2 and download BOINC. Install and enter the project: »setiathome.berkeley.edu
This will get the non-optimized client. The optimized client is a bit more convoluted and harder to find and know what to do.
Not sure we can link to the optimized client directly here but the links in the thread: »**The Latest Seti & Multi Beam Optimizers V2.4v **
has this link to get clients for Windows: calbe.dw70.de/win32.html and the link is broken.--
"It drops into your stomach like a Abrams's tank.... driven by Rosanne Barr..." A. Bourdain