Hello davidmn, welcome to Seven Forums!
Here's the best way forward.
Power down the PC and disconnect all HDDs and connect the SSD to the #1 SATA port of the motherboard and set the SSD as the second boot device in the main BIOS after the CD/DVD drive then boot
the Windows 7 installation media.
Since you have installed to the SSD on another machine, I would do a wipe secure erase
to the SSD before you start the clean install
using the info presented in Step One of this tutorial at the link below, then Step Two #1 to create and format a partition(s) to do the install to. SSD / HDD : Optimize for Windows Reinstallation
Here is additional information you may want to consider before you get started and be sure to post back with any further questions you may have and to keep us informed.
- Then if you do not want to create the new Windows 7 "System Reserved" partition use the outline in Step Two #2 to create, format and mark Active a single 100GB partition to do the installation to.
- If you do want to create the "System Reserved" partition use the outline in Step Two #3 to create, format and mark Active the System Reserved partition and then create and format the 100GB partition to do the installation to.