Windows PC really slow, painfully slow - problem solved!


akamis

akamis

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Windows 11
Your speed problem with a Windows 10/11 machine (2022 or later) is probably not your machine or your Operating System. It's your Internet Service Provider (looking at you, Verizon), which has poorly implemented / released IPV6. Good intentions, poor execution. Turn off IPV6 under your network settings and your machine will be instantly faster (no need to restart).
 

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Windows 1112 Gen Intel i7
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akamis said:
Your speed problem with a Windows 10/11 machine (2022 or later) is probably not your machine or your Operating System. It's your Internet Service Provider (looking at you, Verizon), which has poorly implemented / released IPV6. Good intentions, poor execution. Turn off IPV6 under your network settings and your machine will be instantly faster (no need to restart).
Click to expand...
Simply not true on my end, Albeit all my hardware is from pre 2022 but win 11 since day one none the less. 0 impact here.
 

My Computer My Computer

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1110700k@5.2Viper Steelseries 32gb@ 3600mhzGigabyte 2070 Super 8GB, +200 core + 600 memory
OS
11
Computer type
PC/Desktop
Manufacturer/Model
Custom
CPU
10700k@5.2
Motherboard
Gigabyte Gaming X Z490
Memory
Viper Steelseries 32gb@ 3600mhz
Graphics Card(s)
Gigabyte 2070 Super 8GB, +200 core + 600 memory
Monitor(s) Displays
ASUS 4k HDR, Two 1080p Benq and Samsung
Screen Resolution
3840x2160/2560x1440/1920x1080
Hard Drives
Adata XPG SX8200 PRO 1tb
Samsung EVO 870 500GB
PSU
Corsair RX 650
Case
NZXT h510
Cooling
CM HYPER 212 RGB
Keyboard
Razer Ornata Chroma
Mouse
Steelseries Rival 710
akamis said:
Turn off IPV6 under your network settings and your machine will be instantly faster (no need to restart).
Click to expand...
True, especially with Wi-Fi, but Windows will still use IPv6, you might want to go all the way (+uncheck all except IPv4):
Code: 
netsh int ipv6 isatap set state disabled
netsh int teredo set state disabled
netsh interface ipv6 6to4 set state state=disabled undoonstop=disabled
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "6to4_State" /t REG_SZ /d "Disabled" /f
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "ISATAP_State" /t REG_SZ /d "Disabled" /f
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "Teredo_State" /t REG_SZ /d "Disabled" /f
reg add "HKLM\System\CurrentControlSet\Services\Tcpip6\Parameters" /v "DisabledComponents" /t REG_DWORD /d "255" /f
reg add "HKLM\System\CurrentControlSet\Services\Tcpip6\Parameters" /v "EnableICSIPv6" /t REG_DWORD /d "255" /f
 

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Home2FH2CanAMD Ryzen 5 8600G (07/24)2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200...ASROCK Radeon RX 6600 Challenger D 8G @48FPS ...
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Home2FH2Can
Computer type
PC/Desktop
CPU
AMD Ryzen 5 8600G (07/24)
Motherboard
ASROCK B650M-HDV/M.2 (07/24) BIOS 4.43 AGESA ComboAM5 1.3.0.1b Patch A (07/26)
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2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200 CL40 (07/24)
Graphics Card(s)
ASROCK Radeon RX 6600 Challenger D 8G @48FPS (08/24)
Sound Card
Creative Sound BlasterX AE-5 Plus (05/24)
Monitor(s) Displays
24" Philips 24M1N3200ZS/00 (05/24)
Screen Resolution
1920×1080@165Hz via DP1.4
Hard Drives
Kingston KC3000 NVMe 2TB (05/24)
ADATA XPG GAMMIX S11 Pro 512GB (07/19)
PSU
Seasonic Core GM 550 Gold (04/24)
Case
Fractal Design Define 7 Mini with 3x Noctua NF-P14s/12@555rpm (04/24)
Cooling
Noctua NH-U12S with Noctua NF-P12 (04/24)
Keyboard
HP Pavilion Wired Keyboard 300 (07/24) + Rabalux 76017 Parker (01/24)
Mouse
Logitech M330 Silent Plus (07/26)
Internet Speed
500/100 Mbps via RouterOS (05/21) & TCP Optimizer
Browser
Edge, Brave for YouTube, LibreWolf for FB
Antivirus
NextDNS blocking 50% Traffic
Other Info
Phone: Motorola Moto G86 (02/26)
Backup: Hasleo Backup Suite (PreOS)
Headphones: Sennheiser RS170 (09/10)
Chair: Huzaro Force 4.4 Grey Mesh (05/24)
Notifier: Xiaomi Mi Band 9 Milanese (10/24)
FlexCore USB-C 3.2 Gen 1 (M) to LAN (F) (08/25)
If the issue was indeed poor implementation of IPv6, then it would be slow on internet, not everywhere. It doesn't make too much sense.
 

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Pro 23H2 (7584), 26H2 (9711)Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz4GBMobile Intel(R) GMA 4500M (Mobile 4 series)
    OS
    Windows 11 Pro 23H2 (7584), 26H2 (9711)
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    802.11g wireless 54 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.

  • At a glance

    Windows 11 Pro 26H2 (build 26300.9711)Intel Core-i7 3770 3.40GHz s1155 (3rd generat...2x Kingston Hyper-X Blu 8GB DDR3-1600GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB...
    Operating System
    Windows 11 Pro 26H2 (build 26300.9711)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Microsoft Compact Optical Mouse
    Internet Speed
    802.11ac 5GHz wireless 260Mpbs
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
spapakons said:
If the issue was indeed poor implementation of IPv6, then it would be slow on internet, not everywhere.
Click to expand...
Green loading bar in explorer. This is what started my tweaking journey, it was indeed caused by network.
It did not get any better in Windows 11. NCSI (active probing) does not help either, forcing OS to reconnect.
 

My Computer My Computer

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Home2FH2CanAMD Ryzen 5 8600G (07/24)2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200...ASROCK Radeon RX 6600 Challenger D 8G @48FPS ...
OS
Home2FH2Can
Computer type
PC/Desktop
CPU
AMD Ryzen 5 8600G (07/24)
Motherboard
ASROCK B650M-HDV/M.2 (07/24) BIOS 4.43 AGESA ComboAM5 1.3.0.1b Patch A (07/26)
Memory
2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200 CL40 (07/24)
Graphics Card(s)
ASROCK Radeon RX 6600 Challenger D 8G @48FPS (08/24)
Sound Card
Creative Sound BlasterX AE-5 Plus (05/24)
Monitor(s) Displays
24" Philips 24M1N3200ZS/00 (05/24)
Screen Resolution
1920×1080@165Hz via DP1.4
Hard Drives
Kingston KC3000 NVMe 2TB (05/24)
ADATA XPG GAMMIX S11 Pro 512GB (07/19)
PSU
Seasonic Core GM 550 Gold (04/24)
Case
Fractal Design Define 7 Mini with 3x Noctua NF-P14s/12@555rpm (04/24)
Cooling
Noctua NH-U12S with Noctua NF-P12 (04/24)
Keyboard
HP Pavilion Wired Keyboard 300 (07/24) + Rabalux 76017 Parker (01/24)
Mouse
Logitech M330 Silent Plus (07/26)
Internet Speed
500/100 Mbps via RouterOS (05/21) & TCP Optimizer
Browser
Edge, Brave for YouTube, LibreWolf for FB
Antivirus
NextDNS blocking 50% Traffic
Other Info
Phone: Motorola Moto G86 (02/26)
Backup: Hasleo Backup Suite (PreOS)
Headphones: Sennheiser RS170 (09/10)
Chair: Huzaro Force 4.4 Grey Mesh (05/24)
Notifier: Xiaomi Mi Band 9 Milanese (10/24)
FlexCore USB-C 3.2 Gen 1 (M) to LAN (F) (08/25)
TairikuOkami said:
True, especially with Wi-Fi, but Windows will still use IPv6, you might want to go all the way (+uncheck all except IPv4):
Code: 
netsh int ipv6 isatap set state disabled
netsh int teredo set state disabled
netsh interface ipv6 6to4 set state state=disabled undoonstop=disabled
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "6to4_State" /t REG_SZ /d "Disabled" /f
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "ISATAP_State" /t REG_SZ /d "Disabled" /f
reg add "HKLM\Software\Policies\Microsoft\Windows\TCPIP\v6Transition" /v "Teredo_State" /t REG_SZ /d "Disabled" /f
reg add "HKLM\System\CurrentControlSet\Services\Tcpip6\Parameters" /v "DisabledComponents" /t REG_DWORD /d "255" /f
reg add "HKLM\System\CurrentControlSet\Services\Tcpip6\Parameters" /v "EnableICSIPv6" /t REG_DWORD /d "255" /f
Click to expand...
Isnt true here, at all mate.
 

My Computer My Computer

At a glance

1110700k@5.2Viper Steelseries 32gb@ 3600mhzGigabyte 2070 Super 8GB, +200 core + 600 memory
OS
11
Computer type
PC/Desktop
Manufacturer/Model
Custom
CPU
10700k@5.2
Motherboard
Gigabyte Gaming X Z490
Memory
Viper Steelseries 32gb@ 3600mhz
Graphics Card(s)
Gigabyte 2070 Super 8GB, +200 core + 600 memory
Monitor(s) Displays
ASUS 4k HDR, Two 1080p Benq and Samsung
Screen Resolution
3840x2160/2560x1440/1920x1080
Hard Drives
Adata XPG SX8200 PRO 1tb
Samsung EVO 870 500GB
PSU
Corsair RX 650
Case
NZXT h510
Cooling
CM HYPER 212 RGB
Keyboard
Razer Ornata Chroma
Mouse
Steelseries Rival 710
ShamrockRig said:
Isnt true here, at all mate.
Click to expand...
It sure solved problem with every single notebook I ever had. Besides IPv6 is a security/privacy/VPN nightmare.
 

My Computer My Computer

At a glance

Home2FH2CanAMD Ryzen 5 8600G (07/24)2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200...ASROCK Radeon RX 6600 Challenger D 8G @48FPS ...
OS
Home2FH2Can
Computer type
PC/Desktop
CPU
AMD Ryzen 5 8600G (07/24)
Motherboard
ASROCK B650M-HDV/M.2 (07/24) BIOS 4.43 AGESA ComboAM5 1.3.0.1b Patch A (07/26)
Memory
2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200 CL40 (07/24)
Graphics Card(s)
ASROCK Radeon RX 6600 Challenger D 8G @48FPS (08/24)
Sound Card
Creative Sound BlasterX AE-5 Plus (05/24)
Monitor(s) Displays
24" Philips 24M1N3200ZS/00 (05/24)
Screen Resolution
1920×1080@165Hz via DP1.4
Hard Drives
Kingston KC3000 NVMe 2TB (05/24)
ADATA XPG GAMMIX S11 Pro 512GB (07/19)
PSU
Seasonic Core GM 550 Gold (04/24)
Case
Fractal Design Define 7 Mini with 3x Noctua NF-P14s/12@555rpm (04/24)
Cooling
Noctua NH-U12S with Noctua NF-P12 (04/24)
Keyboard
HP Pavilion Wired Keyboard 300 (07/24) + Rabalux 76017 Parker (01/24)
Mouse
Logitech M330 Silent Plus (07/26)
Internet Speed
500/100 Mbps via RouterOS (05/21) & TCP Optimizer
Browser
Edge, Brave for YouTube, LibreWolf for FB
Antivirus
NextDNS blocking 50% Traffic
Other Info
Phone: Motorola Moto G86 (02/26)
Backup: Hasleo Backup Suite (PreOS)
Headphones: Sennheiser RS170 (09/10)
Chair: Huzaro Force 4.4 Grey Mesh (05/24)
Notifier: Xiaomi Mi Band 9 Milanese (10/24)
FlexCore USB-C 3.2 Gen 1 (M) to LAN (F) (08/25)
Rather than disabling IPv6 totally, you can have Windows prefer IPv4 over IPv6.
Disabling IPV6 used to be an issue with the early 'metro' apps, I don't think it's the case anymore.
learn.microsoft.com

Configure IPv6 for advanced users - Windows Server

Provides step-by-step guidance for how to use the Windows registry to disable IPv6 or certain IPv6 components in Windows.
learn.microsoft.com
 
Last edited:

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System One System Two

  • At a glance

    All Branches but StableAMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 232 GB DDR5Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB...
    OS
    All Branches but Stable
    Computer type
    Laptop
    Manufacturer/Model
    Acer Nitro ANV15-51
    CPU
    AMD Ryzen 7 7735HS 3200-4500 Mhz 8 cores x 2
    Motherboard
    Sportage_RBH
    Memory
    32 GB DDR5
    Graphics Card(s)
    Radeon Graphic / NVIDIA GeForce RTX 4060 8 GB GDDR6
    Sound Card
    AMD/Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (15.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9 144Hz
    Hard Drives
    KINGSTON OM8SEP4512Q-AA 1TB
    Western Digital 256GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & 1GB Orange-fr
    Browser
    Edge Canary- Firefox Nightly-Chrome Dev-Chrome Dev
    Antivirus
    Windows Defender

  • At a glance

    Windows 11 BetaAMD A9-94208 GB of DDR4AMD Radeon R5
    Operating System
    Windows 11 Beta
    Computer type
    Laptop
    Manufacturer/Model
    Asus X751BP
    CPU
    AMD A9-9420
    Memory
    8 GB of DDR4
    Graphics card(s)
    AMD Radeon R5
    Screen Resolution
    1600x900
    Hard Drives
    Seagate 1 TB
What if you take your laptop away and connect to a different ISP such as in an internet cafe? You could also make your smartphone a hotspot and connect to that and test, if the provider is different.
 

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Pro 23H2 (7584), 26H2 (9711)Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz4GBMobile Intel(R) GMA 4500M (Mobile 4 series)
    OS
    Windows 11 Pro 23H2 (7584), 26H2 (9711)
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    802.11g wireless 54 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.

  • At a glance

    Windows 11 Pro 26H2 (build 26300.9711)Intel Core-i7 3770 3.40GHz s1155 (3rd generat...2x Kingston Hyper-X Blu 8GB DDR3-1600GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB...
    Operating System
    Windows 11 Pro 26H2 (build 26300.9711)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Microsoft Compact Optical Mouse
    Internet Speed
    802.11ac 5GHz wireless 260Mpbs
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
OAT said:
Rather than disabling IPv6 totally, you can have Windows prefer IPv4 over IPv6.
Disabling IPV6 used to be an issue with the early 'metro' apps, I don't think it's the case anymore.
learn.microsoft.com

Configure IPv6 for advanced users - Windows Server

Provides step-by-step guidance for how to use the Windows registry to disable IPv6 or certain IPv6 components in Windows.
learn.microsoft.com
Click to expand...
Thanks for the suggestion OAT. If we all disabled IPv6, that would be bad. We would run out of IP addresses. I just reverted to IPv6 by rechecking the box, then backed up my registries, and finally changed my registery setting to Prefer IPv4 over IPv6 by following the directions on the Microsoft page. You have to run command prompt as administrator, btw. It's nice and fast now without disabling IPv6. This will give Verizon and other ISPs more time to fine-tune their gear. Done!
 

My Computer My Computer

At a glance

Windows 1112 Gen Intel i7
OS
Windows 11
Computer type
PC/Desktop
Manufacturer/Model
PowerSpec
CPU
12 Gen Intel i7
Hard Drives
SSD
Internet Speed
Verizon FIOS
Browser
Chrome
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