I too am getting this same message, and this couldn't have come at a worse time for my computer as my warranty is about to expire in a couple of days! The only difference is which directory this file comes from and I've seen several cases of this wow.dll error on Microsoft's website as well and it does appear to be a tricky form of malware. My directory was C:\Users\AppData\Local\Temp\sqxtmcb\sresste\wow.dll
I have an Inspiron 620 ST and have run McAfee Antivirus and Anti Malwarebytes to no avail. You also cannot delete this from the Command Prompt as you are given an "Access Denied" message when attempting to do so. We could use some help here!