New PC's rarely come with CD's anymore. Usually there is a procedure (icon) on the desktop to create your own backup media, if desired. The new laptop I got last year had the procedure to make a flash drive backup rather than a disc.
See this link for backup options.
Dell forum member since 2002
Dell Inspiron 15 - 5577 Laptop
Home Built Desktop PC with ASUS ROG Z170, i7 6700K CPU
Windows 10 64 bit Pro and Windows 10 Insider Program Beta Versions. SSD drives. Cakewalk by BandLab and Studio One 4.1 Recordng Studio Software.
Dell S2719dgf Monitor
Member of Nashville based R.O.P.E.
The OS is on a recovery media which you have to make.
The Drivers are a Cab File that must be extracted with 7zip after downloading to the my documents folder.
Once extracted you right click on any Yellow ! and say install driver from my machine.
I usually make the recovery media first.
then download the cab file.
then download 7zip and install
then extract the cab file onto the USB flash drive.
You can then F12 test boot the usb flash drive and install clean.
Then copy the 3050 folder over to the documents library
Then install drivers by device manager update my pc.
Windows 7 is likely the download. Windows 10 comes from microsoft.