hard drive space for windows 10

[think2]

A friend has a laptop running windows 8 with 20 GB of free hard drive space. Is this enough to install windows 10 and how much hard drive space will be left after windows 10 installs?
TIA

 

[pcgeek11]

IMO your friend will be suffering for more space.

 

[MongGrel]

You need 20 for a X64 install 16 for X32, and even the I don't know if it would have much left over if you dumped the other to have much left.

 

[MongGrel]

Windows 10 system requirements

Here's what it takes to upgrade to Windows 10 on your PC or tablet:

• Latest OS: Make sure you're running the latest version—either Windows 7 SP1 or Windows 8.1 Update.
  • Find our which version you're running
  • Need the latest version? Download Windows 7 SP1 or Windows 8.1 Update.
• Processor: 1 gigahertz (GHz) or faster processor or SoC
• RAM: 1 gigabyte (GB) for 32-bit or 2 GB for 64-bit
• Hard disk space: 16 GB for 32-bit OS or 20 GB for 64-bit OS
• Graphics card: DirectX 9 or later with WDDM 1.0 driver
• Display: 800 x 600

See more detailed specifications