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[HUB] Not enough space warning is thrown if disk where Unity Hub is installed has not enough space for new Unity Editor



Steps to repro:
1. Fill up the primary disk so there would be no space for another Unity download
2. Set Editor default location to another disk where there is enough space
3. Try to download

Expected result: Hub downloads and install Unity Editor
Actual result: Hub throws an error that there is not enough space

Reproduced with: Unity HUB 2.0

  1. Resolution Note:

    This part is planned to be revamped in a later version.
    This is currently a limitation, please note that, at the moment, Unity download require space in the main drive temp folder before moving into the destination folder. This is planned to be improved upon in the next major version, the download location can be specified.

Comments (2)

  1. unity_1n-nLT-_UlOtAQ

    Nov 05, 2019 20:41

    I believe Unity Hub temporarily downloads install files into a temporary file directory located on the primary hard drive (this is my thinking due to the way the offline installer works when you specify an install directory)

    Download the installer .exe file (Unity Assistant) from the "Latest Release" section of the Unity website.
    (Found this out through the docs here:

    Installer download location:


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