Intel haxm version 7.2 not digitally signed?

Haxm not working in the latest update (version 7.2 as of posting).

After updating android studio to version 3.1.2 (probably not relevant) and updating haxm, avds will no longer work. I have not been able to code for hours due to my avd's complaining about vt-x. After searching the internet for other possible errors, uselessly checking bios if vt-x was enable (which was because I was using Intel haxm prior to update), and resting from frustration, I decided to use an older version of haxm(7.1)... and its working again! Whats going on?

Solution

Are you on Windows 7? I suspect this issue only affects 64-bit Windows 7 systems that lack a security patch, which enables support for SHA-256 code signing algorithm:

https://www.microsoft.com/en-us/download/details.aspx?id=46148