“Not Enough Space” Typically, the Windows error code 0x80070070 comes up when there is an issue with the available space on the disk, mainly while installing updates, upgrading system Windows, or performing other system functions, for instance, downloading applications or transferring files. This is annoying most especially when you’re convinced that you have enough space in your disk. Knowing the reason for the problem and how it can be solved can make everything fast and easy.