Quota

Disk Quotas are only available on NTFS partitions.
To create a quota, right-click on the relevant drive.
Select Properties.
Select the Quota Tab.
Select the Enable Quota management checkbox to enable quotas for this drive.
Select the Deny Disk space to users exceeding quota limit checkbox to prevent users from exceeding their quota limits.
Select the Limit Disk space to option to set the disk quota limits.
Select the Limit Disk space to option to set the disk quota limits.
Select the Limit and Warning levels.
It is a good idea to log when a user exceeds his quota limit or reaches his warning level.
This quota will apply to all users of the system except the Administrator. Select Quota Entries to configure individual quota limits.
Select Quota.
Select New Quota Entry.
Specify the user you want to set the quota limit for.
Click OK
Select the quota limits you want to apply to the user.
Click OK.
The quota limits are displayed in the quota entries box. N.B. The administrator has no quota limit.
Click on Apply to start the quota.
Click on OK to accept the warning.
The disk quota is now active.