Will SFC undo custom registry edits?


TVeblen

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I recently Disabled the More Options Context menu and it got me wondering if when I run SFC (System File Checker) it would undo that or any other custom edit I make.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel i7-13700K
    Motherboard
    MSI PRO Z790-A WiFi
    Memory
    Corsair Vengence 5600 - 32GB
    Graphics Card(s)
    MSI RTX3060 Ventus 2x 12GB
    Sound Card
    On board - Realtek ALC4080
    Monitor(s) Displays
    LG 27GL850
    Screen Resolution
    2560 x 1440
    Hard Drives
    WD Black SN850X Nvme - 1TB
    WD Black 6TB HDD 256MB cache CMR
    WD Black 6TB HDD 128MB cache CMR
    PSU
    Corsair RM850x
    Case
    Fractal Design - Define 7
    Cooling
    Deepcool AK400
    Keyboard
    MS KC0405
    Mouse
    MS Model 1113 / MS Wireless Mobile Mouse 3500
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Windows Security
    Other Info
    I have a Case Speaker!
    I have a Blueray Disk drive!
  • Operating System
    Windows 10 Pro 22H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    i7-9700K
    Motherboard
    Asus Prime Z390-A
    Memory
    Corsair Vengence 32GB
    Graphics card(s)
    EVGA GTX1060
    Sound Card
    On Board
    Monitor(s) Displays
    Acer 27"
    Screen Resolution
    1920 x 1080
    Hard Drives
    WD Black Nvme 500GB
    Toshiba X300 5TB
    PSU
    Corsair RM850x
    Case
    Antec P101 Silent
    Cooling
    CoolerMaster Hyper T4
    Mouse
    Logitec M-U0007
    Keyboard
    MS KC0405
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Avast!
    Other Info
    I have a Case Speaker!
I recently Disabled the More Options Context menu and it got me wondering if when I run SFC (System File Checker) it would undo that or any other custom edit I make.


It hasn't undone that tweak for me, and I run SFC a lot.
SFC hasn't undone any of my tweaks. All it really does is fix "broken" things, not tweaked things.
 

My Computers

System One System Two

  • OS
    Win 11 Home ♦♦♦22631.3527 ♦♦♦♦♦♦♦23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE (BIOS 4702)
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    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,
    DRW-24B1ST CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    Cooler Master ATCS 840 Tower
    Cooling
    CM Hyper 212 EVO (push/pull)
    Keyboard
    Ducky DK9008 Shine II Blue LED
    Mouse
    Logitech Optical M-100
    Internet Speed
    300/300
    Browser
    Firefox (latest)
    Antivirus
    Bitdefender Internet Security
    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® (not in use)
    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
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?
No it will not.
 

My Computer

System One

  • 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
Could you imagine if you have made extensive customizations to Windows and SFC undid all of that? Its purpose is not to undo changes to settings / registry /etc. For that you could perform a "Reset this PC" operation.
 

My Computers

System One System Two

  • OS
    Win11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Built
    CPU
    Intel i7-11700K
    Motherboard
    ASUS Prime Z590-A
    Memory
    128GB Crucial Ballistix 3200MHz DRAM
    Graphics Card(s)
    No GPU - CPU graphics only (for now)
    Sound Card
    Realtek (on motherboard)
    Monitor(s) Displays
    HP Envy 32
    Screen Resolution
    2560 x 1440
    Hard Drives
    1 x 1TB NVMe Gen 4 x 4 SSD
    1 x 2TB NVMe Gen 3 x 4 SSD
    2 x 512GB 2.5" SSDs
    2 x 8TB HD
    PSU
    Corsair HX850i
    Case
    Corsair iCue 5000X RGB
    Cooling
    Noctua NH-D15 chromax.black cooler + 10 case fans
    Keyboard
    CODE backlit mechanical keyboard
    Mouse
    Logitech MX Master 3
    Internet Speed
    1Gb Up / 1 Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    Additional options installed:
    WiFi 6E PCIe adapter
    ASUS ThunderboltEX 4 PCIe adapter
  • Operating System
    Win11 Pro 23H2
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo ThinkBook 13x Gen 2
    CPU
    Intel i7-1255U
    Memory
    16 GB
    Graphics card(s)
    Intel Iris Xe Graphics
    Sound Card
    Realtek® ALC3306-CG codec
    Monitor(s) Displays
    13.3-inch IPS Display
    Screen Resolution
    WQXGA (2560 x 1600)
    Hard Drives
    2 TB 4 x 4 NVMe SSD
    PSU
    USB-C / Thunderbolt 4 Power / Charging
    Mouse
    Buttonless Glass Precision Touchpad
    Keyboard
    Backlit, spill resistant keyboard
    Internet Speed
    1Gb Up / 1Gb Down
    Browser
    Edge
    Antivirus
    Windows Defender
    Other Info
    WiFi 6e / Bluetooth 5.1 / Facial Recognition / Fingerprint Sensor / ToF (Time of Flight) Human Presence Sensor
We had set PowerShell and Terminal to always run in an elevated prompt. I remember SFC flagged at least one of those as issues and undid them.
 

My Computers

System One System Two

  • OS
    Windows 11 22H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell XPS8950
    CPU
    i7-12700K
    Motherboard
    Z690 : 9D2HH Foxconn, R6PCT Foxconn 2nd
    Memory
    16GB (2 x 8)
    Graphics Card(s)
    Intel(R) UHD Graphics 770 with shared graphics memory
    Sound Card
    Integrated
    Monitor(s) Displays
    Acer CBL282K Smiiprx
    Screen Resolution
    4K UHD (3840 x 2160) @ 60 Hz
    Hard Drives
    Western Digital PC SN810 512 GB M.2 NVMe SSD, PCIe
    PSU
    750W
    Cooling
    2G44F Asetek 125W CPU liquid cooler
    Keyboard
    Arteck Wireless
    Mouse
    Victsing-mm057 wireless
    Internet Speed
    Wi-Fi 6
    Browser
    Vivaldi
    Antivirus
    Windows Defender (native)
  • Operating System
    Win 22H2
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 5620
    CPU
    12th Gen Intel Core i7-1260P
    Memory
    2 x 8 GB
    Graphics card(s)
    Intel Iris Xe Graphics
    Screen Resolution
    1920 x 1200 @ 60 Hz
    Hard Drives
    NVMe 512 GB
    Case
    Aluminum
    Mouse
    Touchpad
    Browser
    Vivaldi
    Antivirus
    Windows Defender (native)
I've had W11 Pro running on this rig for almost 2 months now - Clean Install, and I've run SFC maybe 3 times. Every time it finds errors to repair.
So I was wondering if all my tweaking could be the reason.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel i7-13700K
    Motherboard
    MSI PRO Z790-A WiFi
    Memory
    Corsair Vengence 5600 - 32GB
    Graphics Card(s)
    MSI RTX3060 Ventus 2x 12GB
    Sound Card
    On board - Realtek ALC4080
    Monitor(s) Displays
    LG 27GL850
    Screen Resolution
    2560 x 1440
    Hard Drives
    WD Black SN850X Nvme - 1TB
    WD Black 6TB HDD 256MB cache CMR
    WD Black 6TB HDD 128MB cache CMR
    PSU
    Corsair RM850x
    Case
    Fractal Design - Define 7
    Cooling
    Deepcool AK400
    Keyboard
    MS KC0405
    Mouse
    MS Model 1113 / MS Wireless Mobile Mouse 3500
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Windows Security
    Other Info
    I have a Case Speaker!
    I have a Blueray Disk drive!
  • Operating System
    Windows 10 Pro 22H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    i7-9700K
    Motherboard
    Asus Prime Z390-A
    Memory
    Corsair Vengence 32GB
    Graphics card(s)
    EVGA GTX1060
    Sound Card
    On Board
    Monitor(s) Displays
    Acer 27"
    Screen Resolution
    1920 x 1080
    Hard Drives
    WD Black Nvme 500GB
    Toshiba X300 5TB
    PSU
    Corsair RM850x
    Case
    Antec P101 Silent
    Cooling
    CoolerMaster Hyper T4
    Mouse
    Logitec M-U0007
    Keyboard
    MS KC0405
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Avast!
    Other Info
    I have a Case Speaker!
I was reading the other current threads regarding DISM and SFC.
I just did DISM /Restorehealth first - it was stuck at 62.3% for a while then finished successfully.
Then ran SFC - no integrity violations.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel i7-13700K
    Motherboard
    MSI PRO Z790-A WiFi
    Memory
    Corsair Vengence 5600 - 32GB
    Graphics Card(s)
    MSI RTX3060 Ventus 2x 12GB
    Sound Card
    On board - Realtek ALC4080
    Monitor(s) Displays
    LG 27GL850
    Screen Resolution
    2560 x 1440
    Hard Drives
    WD Black SN850X Nvme - 1TB
    WD Black 6TB HDD 256MB cache CMR
    WD Black 6TB HDD 128MB cache CMR
    PSU
    Corsair RM850x
    Case
    Fractal Design - Define 7
    Cooling
    Deepcool AK400
    Keyboard
    MS KC0405
    Mouse
    MS Model 1113 / MS Wireless Mobile Mouse 3500
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Windows Security
    Other Info
    I have a Case Speaker!
    I have a Blueray Disk drive!
  • Operating System
    Windows 10 Pro 22H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    i7-9700K
    Motherboard
    Asus Prime Z390-A
    Memory
    Corsair Vengence 32GB
    Graphics card(s)
    EVGA GTX1060
    Sound Card
    On Board
    Monitor(s) Displays
    Acer 27"
    Screen Resolution
    1920 x 1080
    Hard Drives
    WD Black Nvme 500GB
    Toshiba X300 5TB
    PSU
    Corsair RM850x
    Case
    Antec P101 Silent
    Cooling
    CoolerMaster Hyper T4
    Mouse
    Logitec M-U0007
    Keyboard
    MS KC0405
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Avast!
    Other Info
    I have a Case Speaker!
SFC won't undo Registry tweaks, but it will certainly restore the original system files, so any modified versions will be gone. That is if you have replaced the default system icons with custom icons, as I have done, then you'll have to redo your customizations.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 64-bit (build 22631.3374)
    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
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, 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.
  • Operating System
    Windows 11 Pro v23H2 (build 22631.3374)
    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)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    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
    Patriot Burst Elite 480GB 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
    Stock Intel CPU Fan, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    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
The SFC protects and repairs critical system files and critical registry keys, it won't cause any changes the user made to unprotected registry keys.
 

My Computer

System One

  • 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
Mmmmm. Conflicting information.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    Intel i7-13700K
    Motherboard
    MSI PRO Z790-A WiFi
    Memory
    Corsair Vengence 5600 - 32GB
    Graphics Card(s)
    MSI RTX3060 Ventus 2x 12GB
    Sound Card
    On board - Realtek ALC4080
    Monitor(s) Displays
    LG 27GL850
    Screen Resolution
    2560 x 1440
    Hard Drives
    WD Black SN850X Nvme - 1TB
    WD Black 6TB HDD 256MB cache CMR
    WD Black 6TB HDD 128MB cache CMR
    PSU
    Corsair RM850x
    Case
    Fractal Design - Define 7
    Cooling
    Deepcool AK400
    Keyboard
    MS KC0405
    Mouse
    MS Model 1113 / MS Wireless Mobile Mouse 3500
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Windows Security
    Other Info
    I have a Case Speaker!
    I have a Blueray Disk drive!
  • Operating System
    Windows 10 Pro 22H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self Built
    CPU
    i7-9700K
    Motherboard
    Asus Prime Z390-A
    Memory
    Corsair Vengence 32GB
    Graphics card(s)
    EVGA GTX1060
    Sound Card
    On Board
    Monitor(s) Displays
    Acer 27"
    Screen Resolution
    1920 x 1080
    Hard Drives
    WD Black Nvme 500GB
    Toshiba X300 5TB
    PSU
    Corsair RM850x
    Case
    Antec P101 Silent
    Cooling
    CoolerMaster Hyper T4
    Mouse
    Logitec M-U0007
    Keyboard
    MS KC0405
    Internet Speed
    940 Mbps
    Browser
    Firefox
    Antivirus
    Avast!
    Other Info
    I have a Case Speaker!
SFC won't undo Registry tweaks, but it will certainly restore the original system files, so any modified versions will be gone. That is if you have replaced the default system icons with custom icons, as I have done, then you'll have to redo your customizations.
Yup, which includes replacing any custom startup sound you use, have to reset mine anytime I run it.
 

My Computers

System One System Two

  • OS
    Windows 11 22H2
    Computer type
    Laptop
    Manufacturer/Model
    Alienware M17 R3
    CPU
    Intel Core i7-10750H (Comet Lake)
    Motherboard
    Alienware
    Memory
    32GB DDR4
    Graphics Card(s)
    NVIDIA GeForce RTX 2060 and Intel UHD Graphics
    Sound Card
    Realtek ALC3281-CG
    Monitor(s) Displays
    17"
    Screen Resolution
    3840x2160
    Hard Drives
    Micron 2300 NVMe 1TB
    PC SN530 NVMe WDC 512GB
    Mouse
    Logitech MX Master 3
    Internet Speed
    60mbps
    Browser
    Vivaldi and Firefox
    Antivirus
    MS Defender and Malwarebytes Free
  • Operating System
    Windows 11 22H2
    Computer type
    Laptop
    Manufacturer/Model
    Microsoft Surface Laptop 3
    CPU
    Intel Core i7-1065G7 (Ice Lake)
    Motherboard
    Microsoft Corp.
    Memory
    16GB DDR4
    Graphics card(s)
    Intel Iris Plus Graphics
    Sound Card
    Omnisonic Speakers with Dolby Audio
    Monitor(s) Displays
    13.5” PixelSense Touchscreen Display
    Screen Resolution
    2256x1504
    Hard Drives
    Toshiba Memory 512GB
    Mouse
    Surface Arc Mouse
    Internet Speed
    60 mbps
    Browser
    Vivaldi and Firefox
    Antivirus
    MS Defender and Malwarebytes Free
That's why I use sfc only if I really mess my system. For minor issues I avoid it.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 64-bit (build 22631.3374)
    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
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, 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.
  • Operating System
    Windows 11 Pro v23H2 (build 22631.3374)
    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)
    Gainward NE5105T018G1-1070F (nVidia GeForce GTX 1050Ti 4GB GDDR5)
    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
    Patriot Burst Elite 480GB 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
    Stock Intel CPU Fan, 1x 8cm fan at the back
    Mouse
    Sunnyline OptiEye PS/2
    Keyboard
    Mitsumi 101-key PS/2
    Internet Speed
    100Mbps
    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

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