Blizzard Updater wants to melt my CPU

Technical Support
1

I’m downloading and installing the update and my CPU is LOCKED at 100%. Is this really necessary blizzard?

CPU is a 8700k OC’d to 5.2Ghz on water. This is a very high powered rig and I’m seeing performance stutters while this update is installing. Wuddahell.

8 Likes
2

Same. I can’t post links, but the launcher kept my 8700k@100% during the update I was wondering why my fans starting going out of control.

1 Like
3

Same problem. This problem occurred a few weeks ago too but then seemed to be fixed. Great that it’s pack with a 13 gb patch to download :smiley: :smiley: :smiley:

4

lol, that is not updater falut… i have dual-core athlon 7750 2.7 (yea, stone age CPU) and it takes arround 14% and second app that pops out another 14%
its occasionally like 39% and then it goes down

maybe something else is causing this to happen?

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5

Is definitely the updaters fault when it throttles my CPU to 100% and then disconnects from the update server. Maybe think and actually know something before posting idiotic dribble.

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6

Task manager only has the Update Launcher using up all the CPU.

Can’t post links unfortunately.

7

Same here 100% CPU on a i7-4790K I mean yeah its a few generations old but nothing to where a game update should be maxing out at 100%. Feel bad for those guys not running on water that this is happening to.

8

Could I get those of you having this issue to run some log files for us, and then send them in so our QA Team can investigate?

This support article explains what we need and how to do it.

Send the resulting file you create to:

Techinfo@Blizzard.com with a subject line of “Launcher utilization”

9

A few more people having issues in another thread that I can’t link. Whatever the launcher is needing to do while installing is undeniably cpu hungry.

Hitting 100% on my i56600k, I caught it early though and set my fans to awfully loud jet engine mode so I have been fine.

Probably not going to kill anyones cpu but it’s definitely bad enough that this should be fixed, or at-least warn people when whatever is happening is going to happen.

2 Likes
10

Also please note that the client may be installing some of the download (causing the high CPU usage) then continue the download:

11

The computer was unusable while updating due the high cpu usate, even if i removed the affinity from one physical core LOL (got an i7-8550U). So i deleted the game and redownloaded it thanks to my 1Gbit/s connection :sunglasses:

Well i noticed right now that the whole game is 14GB while the patch 13GB. Wouldn’t have been better just to redownload the whole game insted of this update?

1 Like
12

I have also received reports from my fellow MVPs on our private Discord that pausing and resuming the update can stop high CPU usage problems.

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13

Same for me. CPU fans ran up to 100%…i7 8700K @ 5GHz

14

The same thing is happening to me. As soon as I pause the update it takes down the cpu usage to around 6% but the minute I press start it shoots up to 100% and crashes the PC within 5 seconds.

Specs:
i7-8700k
1080ti
32 GB Memory

It does not happen with any other game or download.

2 Likes
15

So what? Updater not just downloads, but installs data, too. Other than that there must be something wrong with Your PC if 100% cpu usage makes it melt. PCs should work fine under 100% usage (both CPU and GPU). Change fans or something.

16

Yeah the problem is that the PC works perfectly fine with Steam, Internet, Other Games, Other Downloads, etc. The only thing in the whole computer that is causing it to crash/shoot up to 100% usage is Battlenet, more specifically the Battlenet the launcher. I don’t think “Change fans or something” is gonna help.

2 Likes
17

Bad cooling dude. Don’t blame updater. PCs should work fine under full usage. My laptop doesn’t have any problem even when both cpu and gpu is being used at 100%. Fans will get loud, but no throttling or bsod. Do something with Your PC. Add fans or stop overclocking.

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18

You’re telling me that it’s not the fault of the one application in my entire PC that causes this issue?

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20

You’re making excuses for poor code optimization. An application pegging a top tier CPU at 100% utilization is a sign of bad thread optimization. This is not something that is “normal” or the fault of my computer.

2 Likes
21

Same. I have a Ryzen 3 1200 OC’d to 3.8GHz.