![]() If none of these appear to fix the problem, you can manually add the signature file to the machine. If you’ve run Windows Update in the last year or so you shouldn’t have this problem, but if you’ve never run Windows update on a 10 year old computer, it can cause this issue.ģ) There is a Windows file corruption. Being off by a few days is not a problem, but having the clock set to the wrong decade will cause this issue.Ģ) Windows Update is very out of date. A couple of common causes of this problem include:ġ) The computer’s clock is set very incorrectly. If you are running a version of Logger Pro with with a signed driver, the signature file may not be recognized by Windows for various reasons. Starting in Logger Pro 3.4 (released Sept 2005) and all subsequent versions, Logger Pro has included signed USB drivers.If you have an older version, the new version is available to registered owners via a free web account, which you can sign up for at: A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. “Windows cannot verify the digital signature for the drivers required for this device. Uninstall the program or device that uses this driver and check the publisher’s support website to get a digitally signed driver.”Īfter the install the Device Manager will say: The driver is unavailable and the program that uses this driver might not work correctly. This version of Windows requires all drivers to have a valid digital signature. A recently installed program tried to install an unsigned driver. “Windows requires a digitally signed driver. Windows will complain in various ways when this happens.ĭuring the install you may see a message like this: If they are not signed then Windows will not load them, and they will not work. Note there are known issues with expired certificates in older versions of the software, for details see Logger Pro installer warns that Windows can't verify the publisher of this driver software.Īnd if you are having issues with the signature dialog during silent installs on Windows 7, see Issues with the silent installer with Logger Pro on Windows 7īut for other signature issues with signatures, see below:įor security reasons on Windows device drivers have to be signed. ![]()
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