Drive must set a size for the virtual drive. If the quota for the user is set to 0 (unlimited), then 15GB is used as default.
If you want to upload larger files you have to adjust the size of the virtual drive.
Please choose one of these two solutions:
1) Setting the drive size manually
Edit the file C:\Program Files\FileCloud Drive\service\config.xml in your PC and you will be able to find a similar configuration value in the file.
<drivedefaultstorageingb>15</drivedefaultstorageingb>
Please set this to a higher value of 100GB as an example or a value as per your requirement.
If you have a quota set for the user, please add the line 'enablecutomsizewhenserverquota':
<drivedefaultstorageingb>100</drivedefaultstorageingb>
<enablecutomsizewhenserverquota>1</enablecutomsizewhenserverquota>
Then please make sure you have removed the comment out for this configuration by removing "<!--" and "-->" from before and after the configuration parameter. Once the changes are saved please restart the FileCloud Drive.
This parameter can also be set in the central device management, example:
<xml>
<winclouddrive>
<drivedefaultstorageingb>36</drivedefaultstorageingb>
</winclouddrive>
</xml>
If the quota for the user is not 0 (unlimited), then this value is used as the size for the virtual drive -> set a high quota instead of unlimited.