Installation of Microsoft windows os quickly

1.Insert your bootable media( pen drive or CD/DVD ) in CPU
2.Start windows installation
3.When copying of flies is done; press shift+f10
4.command prompt window will open
5. Type taskmgr & hit enter key on keyboard
6. Right click on process "setup.exe"
7. Select set priority>then realtime
8. Close task manager & command prompt window
9. All done. Now; installation of windows will complete quicker than usual.