Reminders on coping Windows 7 OS DIsks

Basic Steps:

• Make ISO image with ImgBurn
• Then burn Image
• optionally can modify ISO to offer all flavors of the OS.

Reference Links:
http://ask.metafilter.com/168458/Copy-Windows-Install-Discs-for-Backup

http://www.mydigitallife.info/create-windows-7-universal-iso-with-all-editions-selection-on-install-
with-ei-cfg-removal-utility/

http://www.techfleece.com/2011/03/05/how-to-create-a-bootable-copy-of-your-windows-dvd/

AND to DOWNLOAD ISO's
Consider the following excellent article
https://www.pcsteps.com/45-download-windows-7-iso-legally-free-digital-river/

And pertinent Win 7 ISO hashes are:
Windows 7 Professional x64 (64bit) SP1
MD5 Checksum: ed15956fe33c13642a6d2cb2c7aa9749
SHA-1 Hash: 0bcfc54019ea175b1ee51f6d2b207a3d14dd2b58

Windows 7 Professional x86 (32bit) SP1
MD5 Checksum: 0bff99c8310ba12a9136e3d23606f3d4
SHA-1 Hash: d89937df3a9bc2ec1a1486195fd308cd3dade928

Which can be checked by the command line FCIV program, downloadable and documented at the following link:
https://support.microsoft.com/en-us/kb/841290