Problem: How to read graphs
Identify what the graph represents.
Most graphs will have a clearly labeled x-element, spaced along the graph's horizontal axis, and a clearly labeled y-element, spaced along the graph's vertical axis.
The graph's title should also tell you exactly what it's about.

Answer: Check the scale for each graph element. This applies to both line graphs and bar graphs.

Problem: How to get water stains off wood
Put mineral oil on a soft rag and rub it into the stain.
Let it sit overnight and repeat if the stain seems to have diminished.
Rub the stain with mineral spirits on a soft cloth if the mineral oil doesn't work.

Answer: Mineral spirits is a mild solvent that can remove a stain that has penetrated into the wax, but not the finish. Wear gloves and apply it in a well-ventilated area.

Problem: How to use the encrypted file system (efs )
Open your system and select the file that is to be encrypted.
Right click on the file click on properties from the menu that appears.
Click on the advanced button.
Answer: See an option at lower part of the screen which is marked as " encrypt contents to secure data ". Click on the box to enable it.