If you are a system administrator for Windows, you will prefer some of these command for day to day task. If you know them, it will make your job easier: -
Warning: These are specifically for system admin purposes. So, while using pay extra care as it can cause serious problems in your computer if not used properly.
Click on start and then you can type these commands directly in the search box in Windows 7: -
winver - Shows the current version of Windows
msconfig - Opens MS System configuration utility which is one of widely used utility
regedit - Opens "Registry editor"
services.msc - Open all "services" running in your computer
gpedit.msc - Opens up the "Group policies"
compmgmt.msc - This opens up the "Computer management" tool where you can perform various computer management activities.
devmgmt.msc - This open up the "Device manager" tool.
diskmgmt.msc - This opens up "Disk management" tool
dfrg.msc - This open the "Disk defragmentation" tool
eventvwr.msc - This opens the "Event viewer" tool
fsmgmt.msc - You can check Shared folders
lusrmgr.msc - Open up "Local users and groups"
perfmon.msc - Opens "Performance monitor"
rsop.msc - Opens "Resultant set of policies"
secpol.msc - Open "Local security settings"
msinfo32 - Opens "System information"
sysedit - Opens "System edit"
win.ini - Opens Windows loading information
system.ini - Opens Windows system information