Alt+tab key= help in switching between open windows or programs
window+E= to open my computer
F2=to rename the selected file
F5= refresh the computer
window key= to open start menu
ctrl+A= to select all files
delete key= to delete the written text or it also help in deleting of files from computer
ctrl+S= to save some files in the system
ctrl+C= to copy seleted items
ctrl+V= to past copied or cut items in the selected area
there are also tips that the user must know that is always use antivirus to prevent attact from virus that may can cause harm to the computer
always keepp your antivirus uptodate.
and alwasy scan all file before installing any drive into the computer. this will help you in preventing of damage and will keep your pc in a healthy condition.
do not keep water near the system if bymistake the water goes inside the entire system will get damage and will cause large amount of money to repair it.
alwasy irject the pendrive and avoid removing it directly.