Knowledgebase

To keep scan times and memory consumption low, TreeSize aggregates its data on folder level. Therefore a rescan is needed if certain settings are changed.

We offer another disk space manager called SpaceObServer. It regularly collects the file system information using a background agent and stores it in a SQL database, including size development and (optionally) all permissions. The reporting is faster and more flexible compared to TreeSize, because it is built on a database and collects data on file level. Here a rescan is not necessary in these scenarios.

By default, Windows does not enumerate folders via WebDAV that contain more than 20000 (20k) elements. Microsoft created a knowledge base entry that covers this topic: https://support.microsoft.com/en-gb/help/912152/

The workaround in short is:
Change the value HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient\Parameters\FileAttributesLimitInBytes to 1000000000 (that's nine zeros) and restart your computer.

In order to store credentials for a task, TreeSize uses Windows' credential manager. However, the setting that allows to store these credentials can be disabled by the Administrator, via group policy. In that case, creating new tasks is not possible.

You can change this setting by starting the security policy manager "SECPOL.MSC". Navigate to "Security Settings > Local Policies > Security Options" and locate the option "Network access: Do not allow storage of passwords and credentials for network authentication". Make sure that this setting is disabled, if you want to create an automated task.

Treesize.exe is digitally signed using an AuthentiCode certificate issued by GlobalSign. One possible cause for this error is that the GlobalSign root certificate is missing, so the certificate chain is broken. The GlobalSign root certificates are deployed through Windows updates and during the installation of TreeSize.

There are only two possible resolutions if you want to use our products on that system:

• Install the product using our installer, or
• please make sure all available Windows updates are installed on this system.

In the unlikely case both options did not resolve the issue, please point a Windows Explorer to "C:\Windows\JAM Software\TreeSize\", right click on TreeSize.exe, select "Properties", go to the tab "Digital Signatures", select the item "sha256", then press the "Details" button, then press the button "View Certificate". Please send us a screenshot of the tab "Certification Path" of the dialog window which pops up then and a screenshot of the actual error dialog.

Yes, that is possible with the command line parameters of TreeSize Professional.

You can use the parameter /SCAN and specify the paths which should be scanned. For example:

"C:\Program Files\Jam Software\TreeSize\TreeSize.exe" /SCAN "C:\" "D:\" "E:\"

You can also use the parameter /SCAN to define a text file, which contains a list of paths that should be scanned when TreeSize is started.
The text file should contain a simple list of scan paths, separated by a newline:

\\server1
\\server2
\\server3
etc.

An example command line call for this would be:
"C:\Program Files\Jam Software\TreeSize\TreeSize.exe" /SCAN "C:\scanpaths.txt"

It may also be useful to create a dedicated shortcut that executes one of these command lines. To this end, just create a shortcut to TreeSize.exe, open the "Properties" dialog of the shortcut, and append the command line parameters as arguments in the "Target" field.

You can change your license key in the software directly at "Help > Change license key". A reinstallation the software is not required.

These type of problems can occur, if the option "Force randomization for images" (mandatory ASLR) in Windows Defender is enabled, which overrides application specific settings. Activating this setting will disregard the compatibility information of the application and can cause the application to crash immediately, or not start at all, as is the case with TreeSize.

To fix this, you can either disable this feature completely, or add TreeSize as exception to your ruleset in Windows Defender:

Open Windows Defender Security center and navigate to "App & browser control > "Exploit protection > Exploit protection settings". Under "System settings", you can deactivate "Mandatory ASLR", or use "Add program to customize" under "Program Settings", to deactivate this for TreeSize.exe only.

Note that this issue should be fixed with TreeSize v8.0 or newer. Please update to the latest version if possible or contact us, should you still face this issue.

Only customers with 25 or more licenses are able to download the MSI installer in our customers area.

An unattended installation is also possible using the normal installer. Please find more information on this in the manual.

The user who should use TreeSize needs to have read access on the folders that should be scanned, or alternatively the user must be permitted to request the Windows backup privilege, which is the case by default for administrators. Using the Windows backup privilege TreeSize is also able to query meta data like size and last change date. It may be necessary to explicitly run TreeSize "as administrator". User do not need read access on the file content unless you want to use the TreeSize duplicate file search with options that take the actual file content into account, and not only the meta data of the files.

Starting with Windows Vista / Server 2008, Microsoft introduced "Client Caches" with the SMB2 protocol in order to speed up queries about gathering file and directory meta information on network drives. This approach also helps utilizing the available network bandwidth more efficiently. However, these caches always return an incorrect value for  NTFS hardlinks (always shown as "1"). The responsible caches can be disabled with the following steps:

1. Run "regedit.exe".
2. Open the path "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanWorkstation\Parameters".
3. Choose "New > DWORD value" in the right click menu and set the name to "FileInfoCacheLifetime" and the value to "0".
4. Restart Windows

After these steps, TreeSize should work properly with hardlinks. For further information about client caches, please visit https://technet.microsoft.com/en-us/library/ff686200(WS.10).aspx.