Need a Win7 checksum creator and verifer for files in a folder

From: Kari R Smith <smithkr_at_nyob> Date: Fri, 27 Jun 2014 20:43:02 +0000 To: CODE4LIB_at_LISTSERV.ND.EDU

Looking for a free, Windows 7 sha-256 checksum creator and verifier tool that runs as a GUI and will produce a file of the checksums (that can then be later verified.)

Thoughts?

Thank you,
Kari