SFC /scannow extremely slow?


JohnnyGui

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After installing May's Cumulative Updates including the Preview (now at build 22000.708) I noticed the sfc /scannow takes a lot of time to complete. The first time it successfully repaired files but even the 2nd scan is very slow. It wasn't like this before

Is anyone else having this issue?
 

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flashh4

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Nothing unusual here, everything running great ! Even ran sfc /scannow ..... it was quick as usual !

Chuck
 

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JohnnyGui

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Nothing unusual here, everything running great ! Even ran sfc /scannow ..... it was quick as usual !

Chuck
Have you installed all the latest Windows (optional) updates?
 

My Computer

System One

  • OS
    Windows 11 21H2
    Computer type
    PC/Desktop
    CPU
    i5-8600K
    Motherboard
    Gigabyte Z370 HD3
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    16GB
    Graphics Card(s)
    Geforce GTX 1070 Windforce OC
    Sound Card
    Internal: Realtek® ALC892 codec
    Monitor(s) Displays
    Acer
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    1080p
    Hard Drives
    Neoforza SSD 256GB
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    Azza Taurus 5000W
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Ghot

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After installing May's Cumulative Updates including the Preview (now at build 22000.708) I noticed the sfc /scannow takes a lot of time to complete. The first time it successfully repaired files but even the 2nd scan is very slow. It wasn't like this before

Is anyone else having this issue?


Generally...

Only run SFC after a reboot.
And if run after DISM... it will be slow.
Has nothing to do with the updates though.

True for Win 10/11
 

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    Win 11 Home ♦♦♦22000.778
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    Built by Ghot® [May 2020]
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    AMD Ryzen 7 3700X
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    Asus Pro WS X570-ACE
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    G.Skill (F4-3200C14D-16GTZKW)
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    EVGA RTX 2070 (08G-P4-2171-KR)
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    (onboard) Realtek ALC1220P / ALC S1220A
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    Built by Ghot®
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    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
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    ASUS M2N32-SLI Deluxe Wireless Edition
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    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
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    EVGA 256-P2-N758-TR GeForce 8600GT SSC
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    up to 2048 x 1536
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    WD 36GB 10,000rpm Raptor SATA
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    Still assembled, still runs. Haven't turned it on for 13 years?

    http://www.xtremesystems.org/forums/showthread.php?183088-5000-B-E-on-M2N32-SLI-Dlx-Overclocked&p=2891724#post2891724

JohnnyGui

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Generally...

Only run SFC after a reboot, and when run after DISM... it will be slow.
Has nothing to do with the updates though.
I didn't run DISM before sfc. And it was after a reboot.
 

My Computer

System One

  • OS
    Windows 11 21H2
    Computer type
    PC/Desktop
    CPU
    i5-8600K
    Motherboard
    Gigabyte Z370 HD3
    Memory
    16GB
    Graphics Card(s)
    Geforce GTX 1070 Windforce OC
    Sound Card
    Internal: Realtek® ALC892 codec
    Monitor(s) Displays
    Acer
    Screen Resolution
    1080p
    Hard Drives
    Neoforza SSD 256GB
    Case
    Azza Taurus 5000W
    Cooling
    Coolermaster Hyper 412R
    Browser
    Edge Chromium

Ghot

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I didn't run DISM before sfc. And it was after a reboot.



Well, occasionally it has problems to fix.
Run it again... see if it's still slow.
 

My Computers

System One System Two

  • OS
    Win 11 Home ♦♦♦22000.778
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    (onboard) Realtek ALC1220P / ALC S1220A
    Monitor(s) Displays
    Dell U3011 30"
    Screen Resolution
    2560 x 1600
    Hard Drives
    2x Samsung 860 EVO 500GB,
    WD 4TB Black FZBX - SATA III,
    WD 8TB Black FZBX - SATA III,
    LG GH22LS30 CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    COOLER MASTER ATCS 840 Full Tower
    Cooling
    CM Hyper 212 EVO (push/pull)
    Keyboard
    Ducky DK9008 Shine II Blue LED
    Mouse
    Logitech Optical M-100
    Internet Speed
    100/100
    Browser
    Firefox (latest)
    Antivirus
    Bitdefender Internet Security (latest)
    Other Info
    Speakers: Klipsch Pro Media 2.1
  • Operating System
    Windows XP Pro 32bit w/SP3
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot®
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
    Case
    Generic Beige case, 80mm fans
    Cooling
    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    100/100
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?

    http://www.xtremesystems.org/forums/showthread.php?183088-5000-B-E-on-M2N32-SLI-Dlx-Overclocked&p=2891724#post2891724

FreeBooter

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The speed time of scan and repair process will change depended on how many system files need to be repaired and how fast the Windows 11 installed storage device.
 

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    SAMSUNG MZVLQ1T0HALB-000H1

zbook

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    Product : 190A Version : KBC Version 94.56
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    16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
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    IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
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IanMosley

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Is anyone else having this issue?
I don't have this issue. However, I run the following after each CU using Windows Terminal (Admin) - Command Prompt / Powershell - one command at a time -

rundll32.exe pnpclean.dll,RunDLL_PnpClean /drivers/maxclean
dism /Online /Cleanup-Image /CheckHealth
dism /Online /Cleanup-Image /ScanHealth
dism /Online /Cleanup-Image /RestoreHealth
dism /Online /Cleanup-Image /Startcomponentcleanup
sfc /scannow


This does take a long time; however it is very thorough and covers most issues.
 

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flashh4

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Yes i always do the updates first before running any programs or apps !
Chuck
 

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Sir_George

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After installing May's Cumulative Updates including the Preview (now at build 22000.708) I noticed the sfc /scannow takes a lot of time to complete. The first time it successfully repaired files but even the 2nd scan is very slow. It wasn't like this before

Is anyone else having this issue?
"very slow" is subjective. How long does it actually take to complete? You could roll back the update and see it that makes a change and then wait for the June update to see if the problem is corrected.
 

My Computer

System One

  • OS
    Windows 11 Professional
    Computer type
    PC/Desktop
    Manufacturer/Model
    Microcenter B677
    CPU
    Intel Core i5-9400
    Motherboard
    ASRock H310CM-HDV/M.2
    Memory
    32GB
    Graphics Card(s)
    Integrated Intel UHD Graphics 630
    Sound Card
    Intel Kaby Lake - High Definition Audio / cAVS (Audio, Voice, Speech) [A0]
    Monitor(s) Displays
    LG Model: GSM59F1
    Screen Resolution
    2560x1080
    Case
    Lian Li 205M
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    Kaspersky AV

zbook

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  • OS
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    HP
    CPU
    Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz
    Motherboard
    Product : 190A Version : KBC Version 94.56
    Memory
    16 GB Total: Manufacturer : Samsung MemoryType : DDR3 FormFactor : SODIMM Capacity : 8GB Speed : 1600
    Graphics Card(s)
    NVIDIA Quadro K3100M; Intel(R) HD Graphics 4600
    Sound Card
    IDT High Definition Audio CODEC; PNP Device ID HDAUDIO\FUNC_01&VEN_111D&DEV_76E0
    Hard Drives
    Model Hitachi HTS727575A9E364
    Antivirus
    Microsoft Defender
    Other Info
    Mobile Workstation

Sir_George

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There is a timer on the script in post #8.
My general rule of thumb is not to run batch files posted in forums. Therefore, I have no information on the "very slow" comment.
 

My Computer

System One

  • OS
    Windows 11 Professional
    Computer type
    PC/Desktop
    Manufacturer/Model
    Microcenter B677
    CPU
    Intel Core i5-9400
    Motherboard
    ASRock H310CM-HDV/M.2
    Memory
    32GB
    Graphics Card(s)
    Integrated Intel UHD Graphics 630
    Sound Card
    Intel Kaby Lake - High Definition Audio / cAVS (Audio, Voice, Speech) [A0]
    Monitor(s) Displays
    LG Model: GSM59F1
    Screen Resolution
    2560x1080
    Case
    Lian Li 205M
    Antivirus
    Kaspersky AV
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