In a windows 7 you can restrict application/s for particular user using applocker.
1.Here user 1 can open windows calculator
2.login using admin account and type gpedit.msc and press enter.
then go to the computer configuration>Windows settings>security settings>Application Control policy
Click on configure rule enforcement and select configured under executable rules>apply >ok
Diskpart-This utility is more useful for managing disk in the pcs or servers.
we can start the work with diskpart from just typing diskpart on cmd
Now with windows 7 we can easily manage a disk drivers and external drives.
To perform a disk clean up,in a search box just type disk and it will give the Disk cleanup as a one of the result
Normally non administrators in the pc cannot install the hardware device drivers.(They don’t have rights),but for the some devices we have to allow them to install device drivers. Therefore we have to configure those settings from the local group policy.
login to the windows 7 pc and rung the gpedit.msc in the run