It's most likely a good idea

  • Blizzard has updated their minimum necessary spec to include 100GB storage area for the two SSDs and wow classic gold hard drives. However, they warn players that functionality of your hard drive might influence Shadowland's gaming experience.

    In a surprising turn of events, Blizzard has announced that World of Warcraft Shadowlands now requires a 100GB SSD as a minimum requirement, but does this mean that you can not run the game with a normal spinning hard drive? A few Shadowlands beta testers have reported that running the game in an HDD hasn't affected their performance or gameplay in any significant way. However, as this expansion is still in beta, this is subject to change.

    However, it's most likely a good idea to run this game on an SSD anyway (here is our list of Best SSDs). If you look at games like Call of Duty Modern Warfare which do not need an SSD but possess very large storage requirements, the game is playable but you will encounter painfully long loading times. You can also potentially experience"hitching" in which the HDD is not fast enough to cheap classic wow gold stream assets in real time.