When trying to install software or Quickmap data using QDownloader, you may get this error:
Out of disk space — Volume
Required space: X KB
Available space: 0 KB
Free some disk space and retry.
Assuming that you do have some free disk space on the drive, and on the computer you are running it from, this is because QDownloader has been run as a different user which doesn’t have access to the mapped drive, or UNC file location of the necessary files.
To fix this, please ensure that you do not run QDownloader by right clicking it and clicking “Run as administrator”; instead just double click QDownloader to launch it.
❗ The account that you are logged in as may or may not be an Administrator, but it’s important not to right click the file to run it as this changes the user context to one that doesn’t have access to the files.
Addendum: This can also happen if the Quickmap DataDir points to an invalid path (this is stored in the registry under: HKLM\SOFTWARE\WOW6432Node\Custom Software\Quickmap\Config\DataDir).
Addendum: In a less likely scenario, this can also be caused by not electing to save mapped network drive credentials when the drive containing the files was mapped. To fix this, remap the network drive, ensuring that you tick the checkbox to “Reconnect at sign-in”.