verifier sets a bunch of debug flags these flags force the system to do a lot of extra checking on device drivers for common programming mistakes. Things like freeing driver memory back to windows but then writing to the memory
after it was allocated to another driver would be cause a bugcheck and name the driver. All of this extra checking takes chunks of memory and time, it might make your machine run slowly. Sometimes people forget to turn it off and end up reinstalling windows to get the system to come back up to speed.
verifier.exe /reset
is how you turn off the verifier flags and stop the extra error checking.
there are cases where you have to run a driver but the vendor will not fix their bugs.
in theses cases you have to exclude the driver from the verifier.exe testing.
Generally, it will be a older driver designed to be accessed by a app.
the app might share handles with the driver. Problem is device driver and apps use a different type of handle and it only works about 99% of the time to share them.
This is because the windows memory manager is free to move apps to the pagefile.sys when the system needs the physical ram, problem happens when the app is moved back into memory but at a different location. the handles would be invalid and it might write to them anyway and corrupt some other drivers data. happens a lot with certain USB devices, and tuning utilities.
javadth :
johnbl :
sometimes it is not a good idea to use a driver updater, your first choice is the motherboard vendors website. They know what chip versions they have put on your motherboard, sometimes these chips will have known bugs or options that require custom drivers that you have to get from your motherboard vendor. the driver updater might work but you will not always know. Some drivers also have to match your BIOS version.
anyway, wait until you get the next bugcheck (if you do)
if you don't get a bugcheck after a few days, (be sure to make your system sleep and wake a few times)
remember to turn off verifier.exe by
verifier.exe /reset
(or your machine will run slowly until you do)
javadth :
johnbl :
this will be a bug in the custom drivers for your notebook, you might just want to update the bios and all of the motherboard drivers if you have not already done so. otherwise see below
------------
first bugcheck 0x19 was cause when a driver freed up memory back to windows then continued to use it.
you would want to change your memory dump type to kernel, then run cmd.exe (or powershell) as an admin and run
verifier.exe /all /standard
then reboot.
be sure to know how to get into safe mode so you can turn off verifier.exe via
verifier.exe /reset
if your machine bugchecks during the boot process.
the new memory dump c:\window\memory.dmp
will contain the name of the bad driver.
note: memory dump driver table was corrupted.
machine info:
Vendor American Megatrends Inc.
BIOS Version N56JRH.202
BIOS Starting Address Segment f000
BIOS Release Date 09/02/2014
Manufacturer ASUSTeK COMPUTER INC.
Product Name N56JRH
Version 1.0
Chassis Type Notebook
Version 1.0
Processor Version Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
Processor Voltage 8ch - 1.2V
External Clock 100MHz
Max Speed 3800MHz
Current Speed 2400MHz
i updated drivers by DriverMax and DriverPack-17-Online_369305223.1493746835
this softs upgraded every thing and upgrade needed softs are 0
but in other softs like driver DR it shows again intel processor need upgrade but i checked again with " Intel(R) Driver Update Utility 2.7.2 " and again shows no need to upgrade
but i have BSOD in intel graphic driver upgrade and nvidia graphic driver upgrade
my memory dump setting was in " small memory dump " and now i changed it to " kernal memory dump "
now without doing reboot and safemod i run this code " verifier.exe /all /standard " in power shel and this is log
so now i sould again run this code ? or should turn it off ?
XML:
Verifier Flags: 0x000209bb
Standard Flags:
[X] 0x00000001 Special pool.
[X] 0x00000002 Force IRQL checking.
[X] 0x00000008 Pool tracking.
[X] 0x00000010 I/O verification.
[X] 0x00000020 Deadlock detection.
[X] 0x00000080 DMA checking.
[X] 0x00000100 Security checks.
[X] 0x00000800 Miscellaneous checks.
[X] 0x00020000 DDI compliance checking.
Additional Flags:
[ ] 0x00000004 Randomized low resources simulation.
[ ] 0x00000200 Force pending I/O requests.
[ ] 0x00000400 IRP logging.
[ ] 0x00002000 Invariant MDL checking for stack.
[ ] 0x00004000 Invariant MDL checking for driver.
[ ] 0x00008000 Power framework delay fuzzing.
[ ] 0x00010000 Port/miniport interface checking.
[ ] 0x00040000 Systematic low resources simulation.
[ ] 0x00080000 DDI compliance checking (additional).
[ ] 0x00200000 NDIS/WIFI verification.
[ ] 0x00800000 Kernel synchronization delay fuzzing.
[ ] 0x01000000 VM switch verification.
[ ] 0x02000000 Code integrity checks.
[X] Indicates flag is enabled.
Boot Mode:
Persistent
Rules:
All rules are using default settings
Extensions:
wdm: rules.default
Verified Drivers:
could u describe about verifier.exe /reset ?
what is this and why i should i turn off it ?
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