If you have just upgraded to Windows 10, you might find that your DU Meter statistics might have been reset during the upgrade. This article outlines the best approach to retain all your data during the upgrade, and how to manually recover data if you upgraded without following these steps.
If you didn’t create a backup before upgrading, it is still possible to recover data, if you still have your “Windows.old” folder. Follow these steps:
copy "C:\Windows.old\Windows\system32\config\systemprofile\AppData\Local\Hagel Technologies\DU Meter\DUMeter.sqb" "C:\Windows\system32\config\systemprofile\AppData\Local\Hagel Technologies\DU Meter\DUMeter.sqb"
The last command is very long, but it must be entered on one line exactly as shown. You can use copy/paste to enter it exactly. You can start DU Meter normally afterwards, it should start the service automatically and will use your old database. Note that this method does not support database merging, and your old data will overwrite whatever you have right now.