General Computer Knowledge

Copy- Ctrl +c  Cut-Ctrl+ paste ctrl +v Undo Ctrl+z open computer windows+e open run windows+r open registry editor window+r , regedit open event viewer windows+r , eventvwr open taskmanager ctrl+shift+esc or taskmgr in run to change between open windows alt+ tab or windows + tab to lock screen windows + l to project screen windows + p to open control panel window +r control to open windows directory, %windir% to open word, winword to open excel, excel to open powerpoint, powerpnt to open access, access

disable startup programs in windows 7 run-> msconfig-> startup-> disable all in windows 10 taskmanager-> startup-> disable each program to clean temp files created, in run cleanmgr and then click ok and select all and click ok temp-> continue-> delete all %temp%-> delete all recent-> delete all prefetch-> delete all to delete startup application in startup folder, go to run %appdata%->microsoft->windows->start menu-> programs->startup

some folders cannot be created like con,  PRN, AUX, CLOCK$, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9 and more”. reason is they are reserved keywords used by DOS to create it simple just type the words and press alt+255 altogether. then enter u can make no name folder too by this method