Solved Why Does My PC Keep Doing This Strange Thing Randomly?
- Thread starter Bernasie
- Start date
- Local time
- 6:56 PM
- Posts
- 5,389
- OS
- Windows 11
Have you scan your computer for malware infections?
My Computer
At a glance
Windows 11AMD Ryzen 7 5700GMicron Technology DDR4-3200 16GBNVIDIA GeForce RTX 3060
- OS
- Windows 11
- Computer type
- PC/Desktop
- Manufacturer/Model
- HP Pavilion
- CPU
- AMD Ryzen 7 5700G
- Motherboard
- Erica6
- Memory
- Micron Technology DDR4-3200 16GB
- Graphics Card(s)
- NVIDIA GeForce RTX 3060
- Sound Card
- Realtek ALC671
- Monitor(s) Displays
- Samsung SyncMaster U28E590
- Screen Resolution
- 3840 x 2160
- Hard Drives
- SAMSUNG MZVLQ1T0HALB-000H1
- Local time
- 11:56 AM
- Posts
- 3,156
- OS
- Windows 11 Enterprise 25H2
My Computer
At a glance
Windows 11 Enterprise 25H2
- OS
- Windows 11 Enterprise 25H2
Welcome to Eleven Forum.
That is normal behaviour. My laptop PCs do that every time I connect a 2nd external monitor via HDMI.
Do you have anything connected by HDMI? Could it be going in and out of standby, causing it to be dropped the re-detected at these random times?
My Computers
-
At a glance
Windows 11 HomeAMD Athlon Silver 3050U8GBRadeon Graphics- OS
- Windows 11 Home
- Computer type
- Laptop
- Manufacturer/Model
- Acer Aspire 3 A315-23-R9VY
- CPU
- AMD Athlon Silver 3050U
- Memory
- 8GB
- Graphics Card(s)
- Radeon Graphics
- Monitor(s) Displays
- laptop screen
- Screen Resolution
- 1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
- Hard Drives
- 1TB Samsung EVO 870 SSD (from April 2026: 250GB EVO 850)
- Internet Speed
- 150 Mbps
- Browser
- Edge, Firefox
- Antivirus
- Defender
- Other Info
- UPDATE - 11 April 2026: due to lid hinges starting to break up this laptop has been retired from active duty. The OS with all software and files has been migrated to my System Seven in 'Other systems' to carry on as my general purpose 'main machine'.
I've now clean installed 25H2 and used Garlin's scripts to update Secure Boot to CA 2023 and revoke the PCA 2011 certificates. It's new role is to test secure boot issues.
Info for 2021-2026:
fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October 2021 it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update, 24H2 on 3rd October 2024 through Windows Update by setting the Target Release Version for 24H2, and 25H2 on 30th September 2025 through Windows Update by setting the Target Release Version for 25H2.
-
At a glance
Windows 11 ProIntel® Core™ i5-520M8GB(integrated graphics) Intel HD Graphics- Operating System
- Windows 11 Pro
- Computer type
- Laptop
- Manufacturer/Model
- Dell Latitude E4310
- CPU
- Intel® Core™ i5-520M
- Motherboard
- 0T6M8G
- Memory
- 8GB
- Graphics card(s)
- (integrated graphics) Intel HD Graphics
- Screen Resolution
- 1366x768
- Hard Drives
- 500GB Crucial MX500 SSD
- Browser
- Firefox, Edge
- Antivirus
- Defender
- Other Info
- unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.
In-place upgrade to 22H2 using ISO and a workaround.
Feature Update to 23H2 by manually installing the Enablement Package.
In-place upgrade to 24H2 using hybrid 23H2/24H2 install media.
Upgraded to 25H2 by Enablement Package.
Also running Insider Experimental 263xx and 29xxx builds and Windows 10 as native boot .vhdx.
-
My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.
My SYSTEM FOUR was a 2-in-1 convertible Lenovo Yoga 11e (1st gen) type 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device. This has now been sold. It has been replaced by my System Eight.
My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Experimental 263xx and 29xxx builds (and a few others) as a native boot .vhdx.
My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro, Hyper-V host machine. Updated to 25H2 on 30th September 2025.
My SYSTEM SEVEN is a Lenovo Thinkpad T580, 1920x1080 touchscreen, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine. As its new home has an existing digital licence for Pro I've been able to upgrade the migrated OS from Home to Pro.
My SYSTEM EIGHT is a 2-in-1 convertible Lenovo Yoga 11e (5th gen) type 20LN, Celeron N4120, 8GB RAM, 512GB NVMe ssd, a supported device for Windows 11. Currently running Windows 11 Pro, plus Insider Beta, Experimental 263xx and 29xxx builds as native boot vhdx.
Yes microsoft defender have found this
Yes i have my pc monitor connected with dvi cable and my tv plugged with hdmi cable in to my pc graphics card at same time but there still must be a way to stop this from happening but how?
My Computer
At a glance
Windows 11
- OS
- Windows 11
- Computer type
- PC/Desktop
- Local time
- 4:56 PM
- Posts
- 4,716
- Location
- CurrentCounty
- OS
- Windows 11 Home x64 Version 25H2 Build 26200.9168
Does the problem happen when you are doing something in particular or is it really random?
Denis
Denis
My Computer
At a glance
Windows 11 Home x64 Version 25H2 Build 26200....
- OS
- Windows 11 Home x64 Version 25H2 Build 26200.9168
Has any windows users experience this problem before in windows 10 windows 8 windows 7 i'm really curious to know because i have only seen this happen in windows 11 if not then it's a issue with windows 11 os itself then i report this to microsoft so they can fix it asap
My Computer
At a glance
Windows 11
- OS
- Windows 11
- Computer type
- PC/Desktop
stevehaz_uk
Well-known member
- Local time
- 4:56 PM
- Posts
- 23
- OS
- Windows 11
I run spacedesk to link a tablet to pc. This happens when connecting. Dont know if this helps?
My Computer
At a glance
Windows 11
- OS
- Windows 11
I dual boot W11 and W10 on my laptop. I can confirm that it doesn't happen in W10, only in W11.
Found this registry fix on Tom's Hardware:
Question - Is there a way to turn off the annoying animation Windows 11 does when turning monitors on and off?
Just tried it, it works....
My Computers
-
At a glance
Windows 11 HomeAMD Athlon Silver 3050U8GBRadeon Graphics- OS
- Windows 11 Home
- Computer type
- Laptop
- Manufacturer/Model
- Acer Aspire 3 A315-23-R9VY
- CPU
- AMD Athlon Silver 3050U
- Memory
- 8GB
- Graphics Card(s)
- Radeon Graphics
- Monitor(s) Displays
- laptop screen
- Screen Resolution
- 1366x768 native resolution, up to 2560x1440 with Radeon Virtual Super Resolution
- Hard Drives
- 1TB Samsung EVO 870 SSD (from April 2026: 250GB EVO 850)
- Internet Speed
- 150 Mbps
- Browser
- Edge, Firefox
- Antivirus
- Defender
- Other Info
- UPDATE - 11 April 2026: due to lid hinges starting to break up this laptop has been retired from active duty. The OS with all software and files has been migrated to my System Seven in 'Other systems' to carry on as my general purpose 'main machine'.
I've now clean installed 25H2 and used Garlin's scripts to update Secure Boot to CA 2023 and revoke the PCA 2011 certificates. It's new role is to test secure boot issues.
Info for 2021-2026:
fully 'Windows 11 ready' laptop. Windows 10 C: partition migrated from my old unsupported 'main machine' then upgraded to 11. A test migration ran Insider builds for 2 months. When 11 was released on 5th October 2021 it was re-imaged back to 10 and was offered the upgrade in Windows Update on 20th October. Windows Update offered the 22H2 Feature Update on 20th September 2022. It got the 23H2 Feature Update on 4th November 2023 through Windows Update, 24H2 on 3rd October 2024 through Windows Update by setting the Target Release Version for 24H2, and 25H2 on 30th September 2025 through Windows Update by setting the Target Release Version for 25H2.
-
At a glance
Windows 11 ProIntel® Core™ i5-520M8GB(integrated graphics) Intel HD Graphics- Operating System
- Windows 11 Pro
- Computer type
- Laptop
- Manufacturer/Model
- Dell Latitude E4310
- CPU
- Intel® Core™ i5-520M
- Motherboard
- 0T6M8G
- Memory
- 8GB
- Graphics card(s)
- (integrated graphics) Intel HD Graphics
- Screen Resolution
- 1366x768
- Hard Drives
- 500GB Crucial MX500 SSD
- Browser
- Firefox, Edge
- Antivirus
- Defender
- Other Info
- unsupported machine: Legacy bios, MBR, TPM 1.2, upgraded from W10 to W11 using W10/W11 hybrid install media workaround.
In-place upgrade to 22H2 using ISO and a workaround.
Feature Update to 23H2 by manually installing the Enablement Package.
In-place upgrade to 24H2 using hybrid 23H2/24H2 install media.
Upgraded to 25H2 by Enablement Package.
Also running Insider Experimental 263xx and 29xxx builds and Windows 10 as native boot .vhdx.
-
My SYSTEM THREE is a Dell Latitude 5410, i7-10610U, 32GB RAM, 512GB NVMe ssd, supported device running Windows 11 Pro.
My SYSTEM FOUR was a 2-in-1 convertible Lenovo Yoga 11e (1st gen) type 20DA, Celeron N2930, 8GB RAM, 256GB ssd. Unsupported device. This has now been sold. It has been replaced by my System Eight.
My SYSTEM FIVE is a Dell Latitude 3190 2-in-1, Pentium Silver N5030, 8GB RAM, 1TB NVMe ssd, supported device running Windows 11 Pro, plus Insider Beta, Experimental 263xx and 29xxx builds (and a few others) as a native boot .vhdx.
My SYSTEM SIX is a Dell Latitude 5550, Core Ultra 7 165H, 64GB RAM, 1TB NVMe SSD, supported device, Windows 11 Pro, Hyper-V host machine. Updated to 25H2 on 30th September 2025.
My SYSTEM SEVEN is a Lenovo Thinkpad T580, 1920x1080 touchscreen, Intel Core i7-8650U, 16GB RAM, 512GB NVMe SSD + 2nd 512GB NVMe SSD, a supported device for Windows 11. This is my current general purpose 'main machine'. The installed Windows 11 Home from my System One has been migrated to this machine. As its new home has an existing digital licence for Pro I've been able to upgrade the migrated OS from Home to Pro.
My SYSTEM EIGHT is a 2-in-1 convertible Lenovo Yoga 11e (5th gen) type 20LN, Celeron N4120, 8GB RAM, 512GB NVMe ssd, a supported device for Windows 11. Currently running Windows 11 Pro, plus Insider Beta, Experimental 263xx and 29xxx builds as native boot vhdx.
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