In case you use slipstream media to install Windows 7 SP1 integrated for a fresh new start on your Fujitsu (Siemens) Lifebook P1620, read this warning: Do NOT install the Authentec driver from Windows Update (better hover the mouse over the update, right click, choose hide update) or Fujitsu, deactivate the device in the device manager.
The longer story:
I have created a bootable USB thumb stick with Windows 7 Ultimate German x86 with integrated Service Pack 1 (using the USB/DVD Download Tool and the official ISO download from MSDN) and right after the flawless installation I visited Windows Update to update newer and install missing drivers. Among them was Authentec’s Fingerprint driver.
I installed it and the drama began, CPU went up to 100%, the system got unresponsive and the speakers started (and never stopped) to play an annoying song called “device plugged in, device removed”. After a while (remember, 100% CPU) the device manager opened and I saw an ongoing “Biometric device” being discovered and removed – even after a reboot.
I went to add/remove programs, removed Authentec’s suite, rebooted, no change.
I went to System Restore, restored the system to it’s previous state, after the successful restore and reboot – silence!
So I went to Fujitsu’s website for the P1620 (links below) and manually installed the Authentec suite for Windows 7 – that song started playing again 
. Again, System Restore helped to get back to a working state.
Note that the situation has gotten worse with SP1: As reported here previously for Windows 7 RTM the drivers never worked (at least for me on my *German* Windows 7): The finger print reader simply didn’t recognize any sliding finger but at least there was no endless plug in/removal.
Drop a comment if you got your fingerprint device to work with Windows 7.
Drivers for Fujitsu Lifebook P1620
German (Notebooks – Lifebook –Lifebook P)
US (Go to Notebooks – P Series – P1620)
Authentec drivers for P1620 for Windows XP, Vista and 7 German
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do you think windows 7 would be good for a p1610 with it’s core solo 1.2ghz and 1gb ram?
It won’t be superperforming but I highly recommend it over Windows XP.
You should update to latest BIOS (1.15) and most drivers should be detected via Windows Update. For missing drivers I would recommend this http://de.fujitsu.com/support/downloads.html choose Notebooks – LifeBook – LifeBook P – P1610. There you get drivers for Windows 7. The US driver site only lists XP and Vista. From my experience with P1620 I would recommend not to install the Authentec drivers.
Please report your success story here :)
BTW, if you are not sure, you may want to first create a full backup image of your current installation and then download a Win7 image from Microsoft to try out performance and compatibility. If possible I highly recommend to upgrade to 2 GB RAM. But Win7 works far better with 1 GB than Vista.
Pingback: How to find Windows 7 drivers for Fujistu LifeBook P1610 « Tablet-Profi
Windows 7 on a p1610 works great. I was afraid the core solo 1.2ghz and 1gb of ram would be a problem but so far it runs very well, as good as it did on XP. Windows 7 found most of the drivers but the touchscreen and biometrics didn’t work. I couldn’t find drivers on the german site you posted so I used p1620 drivers from laptopdrivers.net and they worked perfectly. The screen rotation doesn’t work automatically either but the button works so I just press the button when using it as a tablet.
My Windows Experience Score isn’t great, only 2.0. Here’s the details:
Processor Genuine Intel(R) CPU U1400 @ 1.20GHz 2.3
Memory (RAM) 1.00 GB 4.3
Graphics Mobile Intel(R) 945 Express Chipset Family (Microsoft Corporation – WDDM 1.0) 2.0
Gaming graphics 251 MB Total available graphics memory 3.0
Primary hard disk 59GB Free (75GB Total) 3.7
the 945 graphics chipset is holding it back, but even if it wasn’t the cpu is only a 2.3
still great for surfing and youtube. Thanks for suggesting 7 over XP!
Thanks a lot for your feedback, much appreciated!