GnuPG is your friend. It is compatible with PGP (Pretty Good Privacy), and it is also available for Windows.
I want to save some files off to a USB Drive. I want to encrypt these files and then be able to take them to a windows machine and read them. Is there any linux commands that will encrypt the files that have a freeware counterpart to decrypt them to be read?
thanks,
Gary
GnuPG is your friend. It is compatible with PGP (Pretty Good Privacy), and it is also available for Windows.

1969 EAI TR-20 Analog Computer Programming PACE Philbrick Electronic Associates
$35.00
Advanced Gravis Analog Controller Joystics For Tandy Computers complete in box
$90.98
VINTAGE 1970s SKIT Scientific Kit for Computer & Electronics SEALED INSIDE Rare
$249.00
Vintage Donner Scientific Analog Computer Patch Cords Banana Plugs & Resistor
$100.00
WICO Computer Command Apple II Analog Joystick Adaptor NOS 72-4525
$59.99
Apple II V2 ANALOG VGA & Z80 PCPI Applicard Softcard PicoPal IIe
$56.99
Vintage 1970’s Analogic MP2110 10-Bit A/D Converter Computer Circuit Board
$24.99
EAI Pace TR-10 Analog Desktop Vintage Computer Electronic Associates Inc
$5555.55
RARE VINTAGE Kontron 80 Psi Compact Microcomputer Computer Germany Early 1980s
$399.99
Rare Vintage CH Product Mach III Analog Joystick for Apple Mac
$45.00