The problems with OEM systems is not a new one, unfortunately, so much so that there are options to do what you want ....
If you can borrow a disk, from a friend, of the exact version of windows 7 that you have from dell, you can use the licence on the Dell system to activate and authorise a fresh install.
There are downloadable copies of windows 7 on the web that forum policy prevents me from pointing you to, but it is possible to obtain this (without using torrents and other providers of hacked bad copies)
An alternative is to use PC Decrapifier which is a free software to remove all the crap that dell supplied on your system Download | The PC Decrapifier
Also have a look at EasUs disk copy which will allow you to clone the install onto the SSD, this software is also free for personal use .... Free Hard Disk Copy/Clone Software for PC & Server Hard Drive. Disk clone, disk backup, disk image and partition copy freeware.
I understand your frustration but hope the above can ease your pain