Scary BSOD After POSTing
I am no expert. I am very new to BSODs. I only have one other from over 8 months ago logged in, due to undervolting an old CPU.
It seems to me that the BSOD (since it was allegedly caused by NETIO.SYS) could be related to GameFirst III (http://rog.asus.com/tag/gamefirst-iii/), which is a network prioritisation service from ROG. I have since uninstalled it, hopefully it was the culprit.
Nevertheless, I appreciate your insight. Are BSODs like this generally harmless?
If it is network/GameFirst related, how come it BSOD'd on me when booting?
Dump File Crash Time Bug Check String Bug Check Code Parameter 1 Parameter 2 Parameter 3 Parameter 4 Caused By Driver Caused By Address File Description Product Name Company File Version Processor Crash Address Stack Address 1 Stack Address 2 Stack Address 3 Computer Name Full Path Processors Count Major Version Minor Version Dump File Size Dump File Time 050615-13135-01.dmp 5/6/2015 5:50:51 PM SYSTEM_SERVICE_EXCEPTION 0x0000003b 00000000`c0000005 fffff880`01825a1d fffff880`0a758370 00000000`00000000 NETIO.SYS NETIO.SYS+25a1d x64 ntoskrn
Most BSOD's are completely harmless, they're there to stop damage being done in the first place, that isn't to say that they can't do damage though, they most certainly can, usually it's if a file is being written to when a bug check occurs then the file will possibly be corrupted, so it's always best to resolve the issue causing the BSOD as soon as possible.
But a BSOD like the one you had should be mostly harmless, it's simply a buggy driver that caused it and most likely wasn't hardware related, all I can suggest is to just keep an eye on it and see how it goes, if it doesn't happen again then great, however if it should happen again then it may be a sign of further issues that you'll need to sort that wasn't caused by the Asus software.
The main reason it happened is because NETIO.sys is loaded during the boot process, and the reason for that is to allow network connections to be establised as soon as the user logs on and to make sure that any services that depend on it being loaded can work without issue (things like networked drives, remote assistance, remote desktop and so on) even if you disable everything to do with networking, NETIO.sys is still loaded just in case it happens to be needed at some point, and I'm not 100% sure, but I think it is used for more than just networking, but I might be wrong on that one, and for those reasons it's loaded as early as possible in the boot process.
Even things like print spooler, which is used to load files to be printed is loaded during the boot process, and that isn't a necessary process for starting up Windows so it isn't surprising that NETIO.sys is loaded up that early in the process.
Hopefully you won't have any more issues, but if you do, don't be afraid to ask for help and make sure to keep that software, you never know when you might need it again, in fact it's going into my own arsenal of diagnostic software as well cause my mum is having a BSOD that I think is due to her external hard drive failing ![]()
Also, if you feel that your issue is sorted, could you mark the thread as solved please? Cheers

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