Open Command Prompt (Start > Run and type in cmd)
In Command Prompt, type in the following in bold line by line,
pressing Enter after each line:
cd \
dir
You will see something like:
Volume in drive C has no label.
Volume Serial Number is 3015-B4F7
The first line is your label.
A warning though, using the MS method will format away
everything.
Backup everything before using this method.