How to fix signature collsion


k had it were it would only recognize 1 wd drive at a time so here is ghow to fix if u get this problem

 would like to also share with you, if you are still having the problem, that I have been able to connect and my Windows 7 Pro has been able to detect all 3 external HDs and each drive has its own letter assigned to it.

Each external drive (ED) is accessible like if nothing ever happened.

The issue seems to be a conflict of IDs assigned to each (ED) when we connect an (ED), then when we connect a 2nd (ED), then the 2nd (ED) is trying to use an ID that has already been assigned to the 1st (ED), therefore, the 2nd (ED) stays “offline” to avoid a conflict with the 1st (ED).

The technical term is “The disk is offline because it has a signature collision with another disk that is online”

To make the 2nd and 3rd, and 4th (ED) to be online, then you have to go to:

  • Computer Management
  • Disk Management
  • Scroll down so you can see your external drives
  • You will notice that the 1st (ED) is “Online”
  • You will notice that the other (EDs) are “Offline”
  • Right-Click on “Offline” and a shortcut menu will give the option to turn (ED) “Online”
  • Wait for a few seconds and now that (ED) will become available to be used.

My WD Passport 1TB problem

You can also reformat each of the other drives if they are new, and that will do it, also.  Or, you can try to connect one at a time, but wait for a bit till each one that’s added gets a letter assigned to it.