These are 5 programs that you must have if you have Windows 7 or XP.

1. Calc.exeIf you have Windows, you must have Calc.exe, or “Calculator” as it is often known. This program emulates the classic Casio calculation found in many handheld computers of the 1970s . One helpful to thing to remember when using Calc.exe is multiplying by 0.5 is the same as dividing by two.
2. Notepad.exeIt’s a classic. This software is the greatest application for taking notes with its minimalist interface and sleek design. You can’t have Windows without it.
3. Charmap.exeImagine being able to view every glyph of a font in one program without having to type out every alt code on Notepad. This power is right at your fingertips with Charmap.exe.
4. Sndvol.exeNeed to pump up the jam to get a party rocking, or maybe you need to deflate the jam when everyone has left you. You need Sndvol.exe
5. CMD.exeIs your computer all slow so you need to end processes? Do you like looking at  CPU usage history over time? Do you know what the Services tab does? If so, you must have CMD.exe. Once installed, just press CTRL + SHIFT + ESC and get true control over your computer.

Bye