Play Media Player Format in Ubuntu

This time I will post about play media player format (mp3,mp4,ect) in ubuntu
because by default ubuntu will not download the codec

Step:

1. Open Ubuntu Software Center
2. In search, type: restricted extras
3. Choose Ubuntu restricted extras
4. Install
5. And now you can play your music and video file

(source: link)

Can't boot Windows 7 after installing ubuntu

At first I install windows 7 and after that I install ubuntu 13.10.
But after install it, I can't boot to my old windows

Here is the step to fix this problem:
(source: link)

1. Boot in ubuntu
2. Open your terminal (just search terminal)
3. type:
   

   sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

4. Enter your password and enter.
5. type:

   sudo apt-get install -y boot-repair && (boot-repair &)

6. It will make you install boot-repair in ubuntu
7. Repair your boot file
8. Restart
9. Try to boot to your windows 7

Ubuntu Installation (Dual Boot)

First I've install Windows 7 in my laptop and now I want to add Ubuntu 13.10 (Saucy Salamander).
And this is my first time to install dual boot ubuntu.

This is the step of installation:

1. From windows 7 you need to prepare (and format) the primary partition for ubuntu partition (I using EaseUS Partition. You can download it from here). Ubuntu using ext2 format. Note: ubuntu only allow 4 primary partition so change all your data partition as logical partition
2. After that you can install your ubuntu via DVD or flashdisk (I using DVD). You can read the installation step here. For step 4 using try something else and choose your partition that you have prepared in number 1.
3. And now you have Windows and ubuntu in your computer.