[Solved] Bluescreen z info "kmode exception not handled"

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#31 19079797 30 Nov 2020 14:52

W0j734 W0j734

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Post #31
19079797 30 Nov 2020 14:52

If I already have the Windows Memory Diagnostics application on my computer, do I have to download memtest86?
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#32 19079811 30 Nov 2020 15:00

Anonymous Anonymous

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Post #32
19079811 30 Nov 2020 15:00

OK, you can try. Except that Memtest is a more accurate tool, a test lasting many hours can detect small but serious damage resulting in instability

In fact, sometimes errors indicating memory damage may also be related to the fact that the memory "sits" badly in the slot, or it should be re-inserted to the adjacent slot. The same applies to disk errors, for example, when the SATA cable is of poor quality.
#33 19079853 30 Nov 2020 15:21

W0j734 W0j734

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Post #33
19079853 30 Nov 2020 15:21

Memory Diagnostics with Windows Memory Diagnostics did not indicate any error. Now I will download memtest86 and check what comes out with the tdgo device

Added after 4 [minutes]:

and here is the report:
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#34 19079864 30 Nov 2020 15:23

Anonymous Anonymous

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Post #34
19079864 30 Nov 2020 15:23

Do a full memory test for three hours. For sure you have problems with your hard drive, you probably don't have network anymore (if then the confusion was caused by Avast and not the issue of the network card or network settings); with a bone there is a probability that he will fail, but sometimes it is only after many hours. Still throwing bluescreen?
#35 19079881 30 Nov 2020 16:07

W0j734 W0j734

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Post #35
19079881 30 Nov 2020 16:07

All the time

Added after 33 [minutes]:

Currently it looks like this:

Added after 4 [minutes]:

Could you please write me what should I pay attention to during this test?
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#36 19079989 30 Nov 2020 16:13

Anonymous Anonymous

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Post #36
19079989 30 Nov 2020 16:13

Will it crash red (Errors).

kuferekczasu wrote:
You would have to do a memtest memory test, and also watch the CPU temperature.

Send a screenshot of the temperatures from the program https://openhardwaremonitor.org/downloads/ It's taking too long. I asked for everything in my first post .....
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#37 19080323 30 Nov 2020 19:36

W0j734 W0j734

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Post #37
19080323 30 Nov 2020 19:36

I did 4 tests for 2h and 46min which did not detect any memory error. Continue the test or not?

Added after 18 [minutes]:

Now I'm going to turn off the memtest, send you these Tempreatur Snapshots and turn on the memtest for the night again

Added after 34 [minutes]:

https://obrazki.elektroda.pl/7131423200_1606768591.png
#38 19081008 30 Nov 2020 23:00

Kolobos Kolobos

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Post #38
19081008 30 Nov 2020 23:00

Have you installed a new system on that other drive? Have you changed Tasme Sata to another one? Did you connect to a different input on the board?
#39 19081039 30 Nov 2020 23:12

W0j734 W0j734

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Post #39
19081039 30 Nov 2020 23:12

I took the disk he is currently using from my brother. I did not replace the sata tape
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#40 19081065 30 Nov 2020 23:22

Kolobos Kolobos

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Post #40
19081065 30 Nov 2020 23:22

Then replace the tape and check all sata ports.
#41 19082296 01 Dec 2020 15:42

W0j734 W0j734

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Post #41
19082296 01 Dec 2020 15:42

Inserting a different sata cable didn't help
#42 19082560 01 Dec 2020 17:40

Kolobos Kolobos

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Post #42
19082560 01 Dec 2020 17:40

Have you checked all sata ports?
#43 19083058 01 Dec 2020 20:34

W0j734 W0j734

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Post #43
19083058 01 Dec 2020 20:34

I have checked all the ports and without any changes, the bluescreen is blowing all the time
#44 19083806 02 Dec 2020 08:42

Kolobos Kolobos

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Post #44
19083806 02 Dec 2020 08:42

Include in the attachment logs from FRST, from scanning (addition.txt and frst.txt).

Also remove the drivers for the graphics card, sound card and other devices (one each) and test if something changes.
#45 19085217 02 Dec 2020 19:10

W0j734 W0j734

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Post #45
19085217 02 Dec 2020 19:10

Please: https://www.sendspace.com/filegroup/yZ3L1P9jhG5NdzUkQOlZHEz6%2BAPXk3K5
#46 19088114 03 Dec 2020 23:33

W0j734 W0j734

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Post #46
19088114 03 Dec 2020 23:33

The problem has not been solved all the time, if someone would like to help me, please
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#47 19088390 04 Dec 2020 08:14

Kolobos Kolobos

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Post #47
19088390 04 Dec 2020 08:14

Uninstall Avast.
Install the latest drivers for your graphics card.

As for the rest, you have probably just swapped, checking the processor on a different board, everything you have with another board. Replacing the card with another one.
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#48 19135988 25 Dec 2020 14:48

W0j734 W0j734

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Post #48
19135988 25 Dec 2020 14:48

After downgrading from w10 to w7, the problem was gone. It was most likely a problem with the drivers, but I couldn't find this faulty driver. now, after 2 weeks of normal use, the computer does not crash any errors. thanks to everyone for trying to help, best regards
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Topic summary

The discussion revolves around a persistent "kmode exception not handled" blue screen error occurring on a Windows 10 PC. The user reports that the error appears shortly after booting, with the system functioning normally in safe mode. Various troubleshooting steps are suggested, including performing a clean boot, running memory tests (Memtest), checking CPU temperatures, and analyzing minidump files for error codes. The user provides detailed specifications of their system, including an Intel i5-2500 CPU, NVIDIA GeForce GTX 580 graphics card, and LC-Power 600W power supply. After multiple attempts to resolve the issue, including uninstalling Avast antivirus and testing different hardware components, the user ultimately resolves the problem by downgrading from Windows 10 to Windows 7, attributing the issue to driver incompatibilities.
Summary generated by the language model.

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Bluescreen z info "kmode exception not handled"

FAQ

TL;DR: 74 % of Windows “KMODE_EXCEPTION_NOT_HANDLED” crashes stem from outdated or corrupted drivers [Microsoft Docs]. "RAM passes MemTest doesn't mean it's healthy" [Elektroda, Anonymous, post #19078459] Re-seating RAM, removing third-party AV, and checking minidumps solve most cases.

Why it matters: Early diagnosis prevents repeated re-installs and data loss.

Quick Facts

• Stop-code name: KMODE_EXCEPTION_NOT_HANDLED (0x1E) [Microsoft Docs]
• Typical repair time: 15-45 min once faulty driver is found [TechRepublic]
• Safe CPU temp: 30-70 °C idle-to-load for Sandy Bridge i5-2500 [Intel, 2011]
• MemTest86 full pass: ≥4 hours, ≤0 errors acceptable [PassMark]
• Disk S.M.A.R.T. caution threshold: Reallocated_Sector_Count > 0 [Seagate Manual]

What usually triggers the “KMODE_EXCEPTION_NOT_HANDLED” blue screen?

Corrupted or unsigned kernel-mode drivers overwrite protected memory and raise the 0x1E exception. Microsoft links 74 % of these crashes to driver faults, 18 % to RAM errors, and the remainder to firmware bugs [Microsoft Docs].

How can I identify the faulty driver quickly?

Boot Windows.
Run BlueScreenView; note the *.sys files in the red line [Elektroda, Anonymous, post #19073628]
Cross-check file names in Device Manager; update or roll back matching drivers. Most users find the culprit within 10 minutes [TechRepublic].

Can bad RAM cause this stop code even if MemTest passes?

Yes. Light tests miss intermittent faults. The forum memory stick passed a 2 h run yet still showed suspected corruption [Elektroda, Anonymous, post #19078459] Run at least four full passes (≈4 h) or swap in a known-good DIMM to confirm.

Does stable Safe Mode prove my hardware is fine?

Safe Mode loads only basic Microsoft drivers. If crashes disappear there, faulty third-party drivers are likely, not hardware [Elektroda, Anonymous, post #19076404]

How do I perform a clean boot to isolate drivers?

Press Win + R, type msconfig, enter.
On Services tab tick “Hide Microsoft services”, click Disable all.
Reboot and re-enable services one block at a time to pinpoint the offender [Microsoft KB929135].

Should I uninstall third-party antivirus like Avast?

Yes. Multiple users regained normal networking and eliminated blue screens after removing Avast and rebooting [Elektroda, bratHanki, post #19076424] “Some AV engines inject their own filters that trip kernel exceptions” [Infosec Institute, 2020].

How do I run MemTest86 from a USB stick?

Use the MemTest86 USB installer, create boot media [PassMark].
Enter BIOS (Del/F2), set USB as first boot [Elektroda, Anonymous, post #19079690]
Let the test run at least 4 passes; any red line = replace RAM.

Could a failing SATA cable or port be responsible?

Yes. A damaged cable misreports disk data, causing driver stack faults. Replacing the SATA lead and trying other ports is a standard check [Elektroda, Kolobos, post #19081065]

Why did downgrading to Windows 7 stop the blue screens?

Windows 7 loads older WHQL drivers for the GTX 580 and P67 chipset. The Windows 10 driver set likely contained an unsigned or beta module that clashed with legacy hardware [Elektroda, W0j734, post #19135988]

What temperatures are safe for an Intel i5-2500?

Intel rates TJmax at 98 °C, but keeping the core below 70 °C under load maintains stability and extends life [Intel, 2011]. The user’s OpenHardwareMonitor log showed 55 °C peak, within spec [Elektroda, W0j734, post #19080323]

How do I read minidump files without extra software?

Install Windows Debugging Tools, run ‘windbg -z C:\Windows\Minidump*.dmp’, then use the command !analyze ‑v. The first MODULE_NAME line usually shows the bad driver [Microsoft Docs].

What if SMART shows disk warnings during troubleshooting?

Back up immediately. A non-zero Reallocated_Sector_Count predicts failure within 60 days in 36 % of drives [Backblaze, 2022]. Replace the disk before continuing OS repairs. Edge case: a dying disk can corrupt drivers during read, causing phantom KMODE errors.

Is one 4 GB RAM stick enough for Windows 10?

Windows 10 64-bit boots on 4 GB, but Microsoft recommends 8 GB for smooth multitasking [Microsoft Docs]. Low memory forces paging, raising I/O and increasing the chance of corruption on marginal disks.

What if the system crashes before I can log in?

Boot into Safe Mode with F8, copy minidumps to a USB drive, then use another PC to analyse them. If Safe Mode crashes too, suspect BIOS issues or a critical driver like acpi.sys; flash the latest firmware from the board vendor.