In the English version of Windows 7
Control Panel - Systems and Security - Administative Tools - Create and Format Hard Disk Partition
A pictorial view of your partitions is displayed
Right click the partition to resize and select Shrink Volume
Atari 1200XL Home Computer with Video Upgrade
$300.00
Vintage Computer- Boxed Atari 600XL Micro Computer (Powers On/UNTESTED) Bundle
$159.99
A8PicoCart Kit Atari 130 65 XE 800 600 XL unocart clone multicart cartridge game
$19.95
Vintage Atari 850 INTERFACE Module - No Power Supply, Untested, As-Is
$50.00
Vintage Atari 800 Computer / Console - Untested
$100.00
Vintage Atari 800 Computer Untested
$160.00
Atari Power Cube 800XL, 600XL, 65XE, 130XE USB-C Power Supply PSU
$11.25
Super sketch Atari Instruction manual 1984
$7.99
A8picoCart Atari 130 / 65 XE 800 / 1200 XL XEGS multicart UnoCart atarimax clone
$28.50
Atari 800xl 65xe 130xe XEGS Pico. A8PicoCart. Loaded with ROMs Gray/Gray
$31.00