Google Earth giving error to free drive space at the time of installation

I am on Windows Vista and am trying to install Google Earth on my laptop. But when I am trying to install it then it will give me some kind of error message saying me that I should first free up some hard drive space and then try again later? When I checked the hard drive space, then there is 40gb plus remaining storage left and I think Google Earth wont require so much of disk space. Can anyone help me?

Did you try to empty up some space from your hard drive by going into %userprofile%\appdata\local\temp folder. Normally, if you visit any website or install any kind of software in your computer then some or the other files get stored in the same drive which usually takes a lot of hard drive space, which you need to empty once a while.

Oh wow, thank you so much for the solution, that really worked for me.

Glad that you have sorted out the issue, but to anyone who wants to know about the System Requirements of Google Earth, then check it below:

Minimum:
Operating System: Windows XP, Windows Vista, or Windows 7
CPU: Pentium 3, 500Mhz
System Memory (RAM): 512MB
Hard Disk: 500MB free space
Network Speed: 128 Kbits/sec
Graphics Card: DirectX9 and 3D capable with 64MB of VRAM
Screen: 1024x768, "16-bit High Color" - DirectX 9 (to run in Direct X mode)
Mail: Outlook 2007+ is required for email functionality

Recommended:
Operating System: Windows XP or Windows 7
CPU: Pentium 4 2.4GHz+ or AMD 2400xp+
System Memory (RAM): 1GB+
Hard Disk: 2GB+ free space
Network Speed: 768 Kbits/sec
Graphics Card: DirectX9 and 3D capable with 256MB of VRAM
Screen: 1280x1024, "32-bit True Color"