Digispark not recognized

[DickKlaassen]

I'm working with w10 32 bit. Installed all drivers as instructed.
When I plug in the Digispark, windows reports " unknown USB device - request for devicedescriptor failed"
Tried it on 4 different PC's (w10, w7, vista w10 64bit) and with different cables and different gates:I always get the same result.
What to do?

[exeng]

The digispark is only available for uploads for 5 seconds after being plugged in. If enumeration occurs after this it usually results in unknown  device.

Unplug the digispark. Go to the device manager and view hidden devices. Uninstall all unknown devices.  Restart the PC. Then only plug the digispark in when prompted by the Arduino IDE when you are trying to upload new sketch.

Any time you get unknown device, you will have to repeat these steps.

[PeterF]

Also, have a look at this post as another forum member has been recently working out exactly what can go wrong with the digisparks and their drivers and usb enumeration...   

[DickKlaassen]

Thank you very much for your answers. I soon as possible I will try further.