Martin said:HWiNFO works with Windows 7, but latest versions use driver that is signed using a SHA-256 signature. This is not supported by initial Windows 7 and requires the Microsoft KB3033929 update. Make sure to install it, then all should be fine. Note that this update might be required also to install several other software/drivers, so if you don't install it, you might be having problems with other devices too.
Martin said:Then there must be some other problem in Windows. This update is normally installed on all Windows 7 systems.