How can I fix repeated KMODE_EXCEPTION_NOT_HANDLED blue screens in Windows 10 when Safe Mode works?
This BSOD is most likely caused by a faulty driver or security software, so start with a clean boot, uninstall Avast, and install the latest graphics drivers [#19076404][#19088390] The helpers also asked for the .dmp files from C:\Windows\Minidump and suggested analyzing them with BlueScreenView/FRST to identify the crashing driver [#19075821][#19083806] They recommended a longer Memtest86 run and checking SMART/drive health and temperatures, because the dumps suggested possible memory corruption or disk issues [#19079864][#19079989][#19078596] If it still crashes, test the RAM, SATA cable/ports, and other components by swapping parts or moving the drive to another system [#19078459][#19081065][#19088390] In the end, the OP reported that the problem disappeared after downgrading from Windows 10 to Windows 7, which strongly suggested a driver-related issue [#19135988]
Hello, I have a problem with my pc. For a long time now, when turning on the computer, a blue screen pops up with the information 'kmode exception not handled'. The error pops up from 1 second from staying on the desktop to max 10 minutes from staying on the desktop. Sometimes it also happens that this blue screen pops up during the very start of the computer. I have read on this and several other forums how I can solve the problem but none of the ways have been able to help me. I would like to add that the computer works fine in safe mode. If one of the users was able to help me solve the problem, I would be grateful. greetings
Did you do the above or is your troubles gone? Put another SMART disk screen.
W0j734 wrote:
Today, when I tried to enter any website, it wrote to me that the site is unsafe.
It may be a question of expired certificates for certain websites, or problems with certificates, or you are entering the wrong pages and the system (possibly an anti-virus program) is blocking you. Upload a screen from the situation.
It happens. If you want to open a website at your own risk, you do so via Advanced. It is just that such websites may have, for example, an expired certificate and the system reports it. For example, an additional cover here is the full version of Malwarebytes Anti-Malware for real-time protection. Keep your browser up to date.
And when I try to enter the network and internet settings, it immediately throws me out of the settings
Added after 2 [minutes]:
Similarly, I can not enter anything in the magnifying glass next to the start because after typing anything, the magnifying glass disappears for a moment and then appears
Added after 5 [minutes]:
Enabling passive mode in avast did nothing, it keeps popping up that the connection is not private
Added after 5 [minutes]:
And when I enter avast, it says that I don't have internet, but it shows that the internet works. When I click on Fix the problem, something like this pops up:
Added after 13 [minutes]:
This is everything I tried before posting on the forum: I reinstalled the system. There is one and the same tutorial on youtube in order to fix the error, namely: msconfig> services> disabling the application management service in enterprises (in my case, the service does not turn off at all. After clicking "save" and "OK" the service still on). I replaced the graphics card - it did not help. I changed the Disk - it did not help. I tried to restore the system to the point where there was no error and system recovery.
Added after 3 [minutes]:
I have no idea. I am currently doing a Windows system restore to its initial state. I will see if the errors I wrote about today will disappear
I was asking for a clean boot and sending the .dmp files for analysis. You should also have a backup of some live Linux on a USB flash drive or DVD. Since
W0j734 wrote:
the computer works fine in safe mode
this partially rules out hardware problems. You make too much of a mess with your head reading the different opinions. Uninstall Avast itself or don't install it at all, it can introduce its own rules (Sometimes it can't even be uninstalled properly ... https://support.avast.com/en-in/article/Uninstall-Antivirus-Utility )
W0j734 wrote:
And when I enter avast, it says that I don't have internet, but it shows that the internet works. When I click on Fix the problem, something like this pops up:
In the device manager, uninstall the network card without removing the drivers and restart the computer.
W0j734 wrote:
I tried to restore the system to the point where there was no error and system recovery.
I have my system for 6 years without reinstalling it on this computer. I make restore points on a regular basis. Reinstalling the system is a last resort, but if you can't (can't) comply with my requests it makes sense, you can come back to the topic if problems recur.
So far you have written that:
W0j734 wrote:
I forgot to add that I am green in "computer" matters
and since some of the problems relate to network setup, you'll only be guessing without understanding the basic concepts. Yes, as a last resort - I emphasize - use programs like https://www.rizonesoft.com/downloads/complete-internet-repair/ (we make a restore point -> check options 6,7,8) it is quite effective, but it can lead to reinstallation of OS ...
So yeah. Today I did not speak up on the forum because I was putting the whole Windows 10 system up again. From now on, I will download / do what you write.
Added after 7 [minutes]:
The errors I wrote about yesterday have resolved, while the blue screen crashes all the time
Do you have one RAM die? Program indicates memory corruption. Turn off the computer, remove the CMOS battery, remove the RAM skeleton, put the bone back properly, and the battery as well - after about a minute. If the bluescreen appears again, perform the memory test with the Memtest program https://www.elektroda.pl/rtvforum/topic658189.html
You have everything displayed on a tray on the screen. Enter BIOS, set date and time (F2 or Del key). Save the changes. Then enter the system, see what the bluescreen situation is, or restart and enter the BIOS again; set the pendrive as the first bootable drive (Or with the F11 key when starting the computer). Save Changes. Memtest should start automatically after restarting your computer. If you want to try to enter the system right now, key F1.
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✨ 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. Generated by the language model.
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].
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].
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.
