i have acer laptop with windows 7 home basic 64 bit os installed, onle one drive with 500 gb was created while installation, now i wants to split that disk into more parts how can i do, please some one help me..........
You can shrink the existing 500GB partition down to a smaller size (let's say 200GB.) That will leave you 300GB of unallocated (unused) space. You could then create two additional partitions of 150GB each, or one partition of 200GB and another of 100GB, etc. Windows 7 lets you do this through Disk Management or Diskpart and this tutorial goes through the steps.
Before doing anything to your hard drive I strongly suggest creating a system image just in case anything goes wrong. You would then be able to restore your computer to the exact condition it was in before messing with the partitions.
Computer type Laptop System Manufacturer/Model Number Sony Vaio VPCEB47GM Laptop OS Win 7 Pro 64-bit CPU Intel i5 2.4 Ghz Memory 8GB DDR3 Graphics Card Intel HD 3000 Sound Card IDT High Definition Monitor(s) Displays 15.6 WGXA Anti-Glare LED Screen Resolution 1280x800
Hard Drives 640Gb 7200rpm Antivirus MSE Browser Opera (primary) with IE9 backup
If Disk Mgmt isn't sufficient to shrink and then Create New Partition or Volume then be sure to use the Partition Wizard bootable CD which will not fail, whereas all other Partition Managers except Disk Mgmt can and will fail - including the PW Home version.
As Lee wisely suggests, back up your files and image first.