Upgrade win10 RTM official version c disk space is not enough to solve

For SSD and many mobile devices, the system C disk always needs to have enough extra space to store some temporary files and backup files, then encounter upgrade win10 RTM What should I do if the official version of the c drive is not enough?

Upgrade win10 RTM official version c disk space is not enough solution:

Microsoft added a clever link in the Windows10 installation and upgrade process, when the upgrade program detects that the C drive does not have enough remaining Space, not only prompts the user to manually clean up the space, but also provides two options:

• Insert a USB flash drive to get extra space, but it must be 16GB or more;

• Choose another partition or link an external hard drive to get extra space (9GB or more);

So users who use Ultrabook, 64GB Surface Pro 3, etc. can upgrade with confidence.