If a hard drive is formatted with NTFS, you can limit the amount of disk space a user can utilize using Disk Quotas. Disk Quotas are based on file ownership (which means that it counts against the one who owns it). To enable Disk Quotas, follow the steps provided in this tutorial.
1. Open My Computer, and right-click the hard drive on which you wish to enable the feature.
2. Select Properties.
3. Click the Quota tab.
4. Check the Enable quota management checkbox.
5. Check the Deny disk space to users exceeding their quota limit checkbox. This will cause the user to receive an insufficient disk space error when their space limit is exceeded.
6. Select the Limit disk space to radio button.
7. Set the amount of disk space to be allocated to the user.
8. Enter value for the Set warning level to option.
9. Click OK.
