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
Dell Poweredge R640 Server | 2x Silver 4114 20 Cores | 64GB | 8x HDD Trays
$1614.99
Dell PowerEdge R740XD Server | 2x Gold 6140 | 512GB | H730P | 12x 3.5" HDD Tray
$3599.00
Dell PowerEdge R740XD Server | 2x Gold 6132 | 128GB | H730P | 8x HDD Trays
$2459.00
Dell PowerEdge R740XD Server | 2x Silver 4114 | 128GB | H730P | 8x HDD Trays
$2099.00
Dell PowerEdge R730XD 28 Core Server 2X Xeon E5-2680 V4 H730 128GB RAM No HDD
$389.99
HP Proliant DL360 Gen9 28 Core SFF Server 2X E5-2680 V4 16GB RAM P440ar No HDD
$196.95
Dell PowerEdge R720XD Xeon E5-2680 V2 2.8GHz 20 Cores 256GB RAM 12x4TB
$510.00
Dell PowerEdge R620 Server 2x E5-2660 v1 2.2GHz 16 Cores 256GB RAM 2x 300GB HDD
$79.19
DELL PowerEdge R730 Server 2x E5-2680v4 2.4GHz =28 Cores 32GB H730 4xRJ45
$284.00
HP ProLiant DL380 Gen9 16SFF 2x E5-2680v4 2.4GHz =28 Cores 64GB P840 4xRJ45
$353.00