Kb3064209

[Joe-912]

Hi all, I updated windows 7 yesterday on my MSI H81m E33 system, I have it with the Pentinum G3258 @4.2 with 1.12v, I started the system today and couldn't boot windows, so I was thinking the Pentinum was needing more vcore volts, so kept raising until i got up to 1.250v and still not boot into windows, went into bios reset to defaults,and system booted, then I remembered one of the updates from Microsoft being update cpu microcode, KB3064209 so I removed that and all my previous overclock profiles work fine, back to 4.2@ 1.12v, Just thought I would post this incase others have same problem...
Joe

[Peakr]

Re: Kb3064209

I ran into this problem as well. You can also disable 1 core in the bios and boot to the desktop and uninstall KB3064209. Good thing Windows 10 will have auto hotfix updates, cause you have nothing to worry about. /s

[Joe-912]

Re: Kb3064209

Hi Peakr, I've just updated to windows 10, now none of my overclock profiles same problem as before boot loop, tried back to stock settings and it boots windows 10 no problem, I tried setting overclock in again manually but no luck it just boot loops, crazy
any ideas?, I even flashed bios again still boot loop if overclocked
Cheers joe

[Peakr]

Re: Kb3064209

It's an asrock bios issue, new bios's for H and B motherboards will be out soon. So until then overclock on one core or not at all.

[Joe-912]

Re: Kb3064209

No my Penium is on my MSI board, and i'm just running windows 10 on stock speeds for now, waiting for MSi to come up with a new bios
Thanks
joe

[Joe-912]

Re: Kb3064209

Found the answer here KB3064209 breaks the G3258 - ASRock Forums - Page 1