When updating Quickmap data (possibly running Disk 2), you may get the following message:

Failed to copy files E:\Data\\CRS\*.* From: E:\Data\ To: G:\Qmap\Data\

Error copying E:\\Data\ to G:\Qmap\Data\

This is because the account you are logged in as does not have permission to write to the destination you have specified, or the files you are trying to overwrite are locked (because Quickmap is currently in use). Ensure that all users have closed Quickmap on their computer, and that you are logged in as a user with permission to write to the location you are installing the updated files to (NTFS and Windows File Share permissions). Copying the files manually might help you work out which files are causing an issue.