PicoQuant GmbH HydraHarp 400 Software V. 3.0.0.1
these warnings. After driver installation Windows should report the device as ready to use. If you wish to verify
correct installation you can check the presence of 'HydraHarp 400' as a USB device in the Windows Device
Manager. For troubleshooting see the next section.
3.4. Installation Troubleshooting
After completion of the software setup and device installation the HydraHarp device should be listed in the
Windows Device Manager under the USB tree. Right click My Computer > left click Properties > Device
Manager to check if the device is free of conflicts and / or if the device driver is installed correctly. Under USB
look for a device named HydraHarp 400 and inspect its Properties.
You can also use the Windows system information facilities (Start > Run > msinfo32). In the System
Information utility inspect Software environment > System Drivers to check if the HydraHarp device driver
PQUSB.SYS (PQUSB64.SYS on x64) is correctly installed and running.
You can also repeat the software installation if necessary. Disconnect the device, uninstall the software and
repeat the setup procedure. Make sure the software is not installed in multiple places. If this does not resolve
the problem, try a different computer. If problems persist, see section 7 for support.
3.5. Uninstalling the Software
Before uninstalling the HydraHarp software you should back–up all valuable data files you might have created
in the HydraHarp installation directory.
Do not manually delete any program files from the installation folder as it will render a clean uninstall
impossible. Also do not delete any driver files manually.
To uninstall the HydraHarp software from your PC you may need administrator rights (dep. on Windows
version and security settings). Go to Control Panel > Add/Remove Software or Programs and select
PicoQuant – HydraHarp 400 vx.x for un–installation. This will remove all files that were installed by the
HydraHarp setup program but not the user data that may have been stored. If there was user data in the
program folders or any subfolders, these will not be deleted by the uninstall program. If intended, you need to
delete these files or folders manually. Nevertheless, it is recommended to back–up valuable measurement data
before uninstalling the software.
Note that un–installation of the data acquisition software does not uninstall the device driver. Do not delete the
driver software from within Device Manager. Starting with HydraHarp software version 2.1 the driver package
appears as a separate software installation that can be uninstalled like any other software through the standard
Windows Control Panel mechanisms (Add/Remove Software or Programs). In the list of installed software look
for items called Windwos Driver Package - PicoQuant (PQUSB). Note, however, that the driver package may
still be needed by other PicoQuant devices. Uninstall it only if you are sure it is no longer required.
Note also that un–installation of the data acquisition software does not automatically uninstall the PQ File Info
shell extension. It can be un-installed as a separate item through the standard Windows Control Panel
mechanisms.
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