WD smartware and windows 8

I have recently bought WD My Book live, installed it and also installed all utilities 

I have all last version of utilities and firmware I am an a recent desktop computer with windows 8 pro -----(i specify that i have no password to acces to my computerand Windows)— and use an  asus router Rt-ac66U for connecting WD My Book live

I have configured the shares and users as public (no private) and put  passwords for me as system admin and for a  posssible guest 

My principal problem is about WDsmartdrive I have paid for updating to pro version and having the possibility to backup on other hard drive than MY Book 

First time WDsmartware just give me access to Dropbox as backup  target  With support help ( from WD Thanks to the helping person) i have changed some settings and Smartware give me access also to My book live as target .I make a backup of photos on it

Just after that (no change in my computer or windows, just shuttdown and open)  ,every time i have tried to use WD smartware for making backup, depending of the time 

sometimes i just have Drobox displayed as target

sometimes i have Drop box and My Book live  but Login is  required  for My Book live and no one of the password i put during configuration  is correct :Authentification failed (message)

sometimes i have My Book live icon as backup target but on it i have the message  No writable partition found …

And even i have paid for the pro version i never see my others hd inside WD smartdrive

But fortunatly i have some files on My Book live (from the only one time i have did it) and i can verify if i have access to them by www.wd3go.com Yes it is working i have access and can open files

And my Windows see correctly My book Live on my network  as media device and as storage

SO the problem is around my Wdsmartware and possibly with Windows 8 I think

A friend of mine have bought it just a month before and using it with Windows 7 without problem

Is someone using Windows 8 have some problem like the ones i have ? find a solution??

Is someone using version pro see as target its other hard drive ? Why buy version pro if not??

Suggestions please!!!

 

Thanks

Thread moved to WD Software as the topic at hand goes beyond the WD My Book Live.

Regards,