As others correctly observe, replacing an HDD with an SSD is the way to go. Any SSD. Yes, the Samsung's are popular and fast, but the reality is that any SSD will be so much faster that my advice would be to save the $ premium the Samsung commands for a machine that's very likely older for having come with Win7.
An otherwise tech savvy friend of mine chose to ignore this piece of advice with his first SSD upgrade but later acknowledged that he'd basically wasted his money by paying the Samsung premium on his older Macbook Pro, having subsequently experienced the performance difference with just about any SSD versus an HDD.
If it were my computer, I'd skip the Samsung premium and use the difference to buy a Windows 10 license. Even if "official" drivers aren't published by the manufacturer, there's a very god chance that everything you need is supported. Dell can be irritating this way (I pick on them because I am most familiar with their corporate products) when they draw a line between supported and not supported, despite updated / supported drivers being available for very similar models in their product line.