The better way to run a hardware diagnostic is outside of Windows - F12 at few times before windows loads to get in.

I am getting the same error... any help fixing this?

thanks!

Exactly what I am experiencing.  The computer is less than 2 months old. 

I'm having the same problem. Scan hangs at 0%.

Same problem. Started a few weeks ago.

My PC laptop has had 2 hard drive replacements in the year I have had this bought brand new just got it back bout 2 weeks ago from second one now its doing this support assist is not running hardware scan!

 It says "preparing" but nothing happens 13 minutes.  Then this  message appears:

An unexpected error while running this request.

If this problem persists, click the Get Support Tab. this is after a update it did on itself yesterday Im so glad I just extended my warranty on it for another year as it ran like two days after I got it back  from the second hardware replacement on warranty ,but I extended it on that day Crazy thing is I don't use it for anything but watching tv ,movies ,ply browser games ect… No downloads anywhere but from Microsoft store im crazy about keeping it clean n safe so why???? someone tell me if your having same issues please.

I have an Alienware R4 and had this issue since I got the laptop in November (2017)… 52 days left on warranty.  I have tried to diagnose, done online chat with support, they ended up telling me to wait for another release.  I got one today, no change... thanks, Dell.

Mine refuses to run Scan Hardware also.  Cannot click tabs either because supportassist is hung up trying to scan hardware 0%  I want an answer!!!!

This has been a reoccurring problem judging from the forum posts. Go to the following thread and read the reply from the moderator. Apparently this has worked for some users.

https://www.dell.com/community/Inspiron/support-assist/td-p/6125366

I have the same problem...