Volume adjuster disappear in the taskbar

You should go to Control Panel > Sound and Audio Devices in the Volume tab check Place Volume icon in the Task Bar. this will make an icon in the task bar of your volume control. Answered Aug, 04 2011

Start=Control Panel=Taskbar and Start Menu=Notification Area. Under System Icons click volume and that should do it. Answered Jul, 15 2011

1. Right-Click on the task bar , click Toolbars and the New Toolbar .
2. Under Folder , type %appdata%\Microsoft\Internet Explorer\Quick Launch and press ENTER .
3. Right click on task bar and uncheck Lock the taskbar .
4. Drag the vertical line and take it to the extreme left side .
5. Right click on the word Quick Launch and uncheck Show Text and Show Title Answered Jun, 11 2011

To convert an existing FAT or FAT32 volume to NTFS, follow these steps:

1. Click Start, point to All Programs, point to Accessories, and then click Command Prompt.
2. At the command prompt, type the following, where drive letter is the drive that you want to convert:
convert drive letter: /fs:ntfs
For example, type the following command to convert drive E to NTFS:
convert e: /fs:ntfs
Note If the operating system is on the drive that you are converting, you will be prompted to schedule the task when you restart the computer because the conversion cannot be completed while the operating system is running. When you are prompted, click YES.
3. When you receive the following message at the command prompt, type the volume label of the drive that you are converting, and then press ENTER:
The type of the file system is FAT.
Enter the current volume label for drive drive letter
4. When the conversion to NTFS is complete, you receive the following message at the command prompt:
Conversion complete
5. Quit the command prompt.

See more : http://support.microsoft.com/kb/307881 Answered May, 21 2011