You must log in or sign up to reply here. I had the same issue when I removed vista and installed XP. I’ve installed all the drivers that I know if and anything seems to be working fine, but I still have one Unknown Device in my Device Manager. And this is exactly what fixed the issue. Alienware 17 and M17x. Goodbye Lorita, wherever you’ve gone You can find the drivers on IBM’s website.

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Can any tell me what it is exactly and what I need to install?

Unknown device driver free download for windows – LENOVO – A67

And now read my post properly. Ultra Male Oct 31, Device manager shows the following drivers installed: My other question would be is this something I can do without? No, create an account now. Sentarshi Oct amt1200, Even though the download page says Matrix Storage Manager like the above driver, it is not the same.


Unfortunately it looks like audio was not related to the unknown device as there still is agm1200 audio in Windows. Any continued assistance will be appreciated.

NWA Answers: [Solved] ACPI/ATM – Atmel Tpm Driver with Link

Anyway this is what it says on the Unknown Device. If you don’t at first succeed. I am still stuck with one driver not loading.

ArkiDec 6, I was told that these were card reader which I have loaded. I now have two instances of “Atmel TPM” under “Sytem devices” and one of them has an exclamation point with attm1200 error: V Windows 10 installation with TPM 2. Your name or email address: Hope this finds you well!

IBM Intel 945 Chipset + ACPI ATM1200 + ACPI IBM0068 Free Driver Download

I don’t now what driver to install for it. Yes, my password is: This device is not working properly because Windows cannot load the drivers required for this device.

It says unknown device with an! Users browsing this forum: I dont think I have that. Discussion in ‘ Lenovo ‘ started by abcxyzDec 6, User32 Aug 11, And this is exactly what fixed the issue.


Good Practise, and never takes long anyways. Do you already have an account?

WinXP Install – Can’t find driver for this Unknown Device

Log in or Sign up. Yea, make sure you have all the drivers listed in my XP clean installation guide.

Oh, I think that’s the “Atmel” thing. What Notebook Should I Buy?

All posts 1 day 7 days 2 weeks 1 month 3 months 6 months 1 year Sort by: However, I’m having trouble with one device in device manager showing as “Unknown device”: