-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Notebooks
- Notebook Hardware and Upgrade Questions
- Re: System_thread_exception_not_handled (atikmdag.sys) Help

Create an account on the HP Community to personalize your profile and ask a question
04-09-2015 09:52 AM
Hello @studio5
Thank you for posting on the HP Forums.
To get your issue more exposure I would suggest posting it in the commercial forums since the HP 255 G3 is a commercial product. You can do this here: Notebook - HP ProBook, EliteBook, Compaq, Slate/Tablet PC, Armada, LTE
The support page for your product may be helpful in the meantime: HP 255 G3 Notebook PC
I hope this helps!
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!
04-09-2015 10:06 AM
Hi @Editortip,
Have you tried the things in my earlier post about the hardware acceleration within the various browsers?
System_thread_exception_not_handled (atikmdag.sys) Help
What operating system are you using?
Did you insure to update your video driver from the support website?
Have you installed any other software, or notice other performance issues?
Did you check your system for viruses, spyware, malware or other malicious software?
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!
04-12-2015 08:28 AM
I have the 255G3 and have had the problem start about a month after purchasing the laptop. Poor and little to none help from HP (except from an agent who is not 'in my region to help'. I re-installed the OS and still it happens. Updating drivers, etc. does nothing. I will try the disabling of the acceleration, however i agree with what you say - for a new computer this shouldn't be happening, and where is the HP support? I've asked for a refund since it's not fit for purpose (ie i am the one fixing it, to no avail) and am yet to receive a reply. May have to take to Twitter to get some actual responses....
04-12-2015 10:10 AM
Beks13 (or anyone who this applies to) by reinstalling your OS do you mean like a system reset or something where the PC is returned to new condition and everything you added is wiped? And that still didn't help? That is what HP wants me to do or mail it back to them to do which would take 2 to 3 weeks when you factor in mailing back and forth and the 9 days they state it would take them to "fix"... Anyone know if they ever recall computers like they do cars??? A lot of people seem to have this issue.
Has anyone sent their pc back to HP and has success? Or done the reset with success?
04-13-2015 09:24 AM
Support
Would you kindly explain what you mean by this is a commercial product?
I purchased my laptop from a well known online retailer probably just like everyone else, but you then ask me to post in a different forum.
Are you saying that as this laptop appears to be a "commercial product" as in a "buisiness product", I should use a different forum?
04-13-2015 11:11 AM
That is exactly what I am saying. In the forum I mentioned it is devoted to commercial class products, and there are more likely to be experts who specialize with the product there. It is just a suggestion to speed up the process for you.
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!
04-13-2015 03:05 PM
Hi jboy8999
Yes they sent me the discs and i had to completely re-install the OS - so i had to save everything i had, as it wiped everything. Not a process which you really want to do (at all!) and since my computer has crashed with the BSOD and error message 4 times since (3 in one hour!) i don't think it's helping. I think it's got to do with flash/video driver/anti-virus (possibly) all clashing with each other. I was actually in conversation with a HP customer service rep, however since i've replied and said nothing has worked, i'm yet to receive a reply. Frankly i'm quite fed up - with a new product, who expects this much hassle? It is a fault, and yes it should be recalled - or have a solution found! I certainly don't want to send my laptop away, as i honestly don't think it will make a difference - it will just be a matter of time until it crashes again. Like many others on this thread have claimed: 'where is HP support?!'
05-04-2015 10:11 AM
I've finally found out it's to do with the air vents being blocked and the fan screams and the laptop shuts down to protect itself. The vents on HPs are in the middle of the bottom of the case - so having it on your lap causes it to overheat (I know, I know).
For the time being put it on a table so there is some air circulating then, when you can, get a cooling thingy(!) which plugs into your USB and has a fan in it. The KnowHow man got one at Argos last week for £15!
Good luck!
05-05-2015 06:22 AM
May the air vent thing is a conincidence... because for me, I always have my laptop in the same position... and it always crashes in explorer and firefox and not in chrome.... so for me anyway, airvents don't sound like the problem.
06-25-2015 10:00 PM - edited 06-25-2015 10:06 PM
On your PC open HP Support Assistant, find the HP Recovery or Recovery Manager, Click on it.
The HP Recovery Manager should start.
Click on Drivers and Applications Reinstallation
Find your graphic driver on the list. Click on the box to its left and then click on the install down on the bottom right.
This may taken several minutes, when it is done it wil advise you to reboot your PC.
This problem has been around since Windows 7 and now with 8 and 8.1.
It is an OS problem between the graphic card and windows.
Neither Microsoft or the graphic card markers have addressed this OS problem.
It is across the broad for all brands of PC and graphic card markers.
Reinstalling windows does not fix the problem, so do not bother.
Check your HP Support Assistant to see if your graphic driver has an update and download and install.
z_man