Kb890830 updating over and over
The only solution I've heard of is to manually download and run the latest tool from the Microsoft Download Center, which you said you already tried in your original post.
This Heartbeat Report wasn't mentioned in my MSRT scan log at C:\Windows\Debug\until August 2016 and I still don't know what telemetry Microsoft is collecting from my system during each scan, since all the Microsoft privacy statement (revised August 2016) says is that "" The MSRT only scans for a small subset of malware listed at https://support.microsoft.com/en-us/kb/890830#bookmark-usage and I question whether these monthly MSRT scans even provide much added value these days.
If you still have problems, see if you currently have the latest v5.40.13000.0 (or some other similar v5.40.) of the file at C:\Windows\System32\
If you already have the latest version of the MSRT in this location you can trigger a scan manually by following the instructions in the Malware Tips tutorial I'm not sure if there was a recent policy change regarding Win XP SP3 and the MSRT, but I found a few posts by Win XP SP3 users in the DSL Reports forum reporting that they didn't receive their normal MSRT update for September 2016: Further to opera's suggestion to browse to https:// your XP machine, I noticed that the Major Geeks download page for the MSRT also says " If you go to this page using XP it will tell you that you can no longer run it on XP now, it is not compatible anymore.
If you are offered an old v5.39 version of the tool or have a problem with the download, try downloading from the Major Geeks site at just be sure to use the appropriate 32-bit or 64-bit link to match your Vista OS.
I don't normally recommend that users download Microsoft updates from third-party download sites but the links for the MSRT on Major Geeks download directly from https://download.and I confirmed that the file size and SHA-256 hash of the downloaded Windows-KB890830-V5.40files from the Microsoft Download Center and Major Geeks are identical.It constantly blocks my system, right before installation begins. No overclocking: this is for work, not for gaming.«Always try to look farther ahead...