RoHe and Fireberd, Thanks guy for the advice, have replaced the ssd, in the process of re-installing the deleted programs. DellCare eventually told me that the replacement disk was blank which I managed to confirm before I installed it. The Dell OS recovery tool did not work despite several attemps so I was directed to the Microsoft OS re-install site and the download and installation worked fine, 1st go! Just to let you know that trying use the Macrium Reflect on the faulty ssd gave an error message - error code 23!  however didn't need to use it in the end. Thanks guys
Dell Xps8930 Dell Support assist detected faulty SSD. Sent me a PC611 NVm SK hynix 512gb (ssd drive?). Requested return of faulty ssd. No explanation what to do! Cannot contact Dell, difficult when you are 80 and not technical. Any help? Thanks in advance.
XPS 8930, Faulty SSD