Hello and thanks to both.
Unfortunately I had opened a still unsolved thread because I cannot map the network drive. Somethink seems wrong in my PC. Therefore I wanted to do a backup before formatting and reinstalling everything…but it’s a real pain to do a backup without a proper tool!
If you could give good advice on my network map issue, I will very happily receive your wisdom :
http://community.wd.com/t5/WD-My-Cloud/Basics-My-Cloud/m-p/624581/highlight/true#M1715
Thanks again
edox1999