Once that package was installed, free disk space dropped to about 8.5 GB. (pcmag.com)
The 128 GB version of the tablet will have 83 GB of free storage out of the box but only 23 GB of free disk storage will be available on 64 GB version. (gadgetian.com)
If not otherwise specified on the product pages the minimum requirements are: 512 MB RAM, Windows OS 2003 or higher, 1.0 GHZ or higher processing speed, 100 MB free disk space, internet connection with at least 100 Kbs transfer rate. (forex21.com)