Knowing your PC RAM memory capacity
Check your computers ram memory capacity on Windows and Linux operating systems.

How to identify your hardware device in Windows?
Guide to identify the model and manufacturer of your device like sound card, ethernet card etc in Windows.

Simple folder and file protection in Windows
Simple tutorial on how to proect your files and folders in windows without using any softwares.

Show your disk use and free disk space
Steps to know your disk space use and available free disk space on linux and windows