Comments on: SFC /Scannow & DISM Commands Explained https://davescomputertips.com/sfc-scannow-dism-commands-explained/ Computer Help, Tips, How-to's, and News Sat, 14 Mar 2026 01:47:59 +0000 hourly 1 By: Jim Hillier https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-176220 Sat, 14 Mar 2026 01:47:59 +0000 https://davescomputertips.com/?p=151085#comment-176220 In reply to Kenneth Wolf.

Thanks for posting back with your solution Ken, much appreciated.

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By: Kenneth Wolf https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-176199 Fri, 13 Mar 2026 18:32:16 +0000 https://davescomputertips.com/?p=151085#comment-176199 Finally fixed my issue with DISM with this command:
DISM /online /cleanup-image /StartComponentCleanup

After that, the regular DISM command completed and scannow was able to do a scan, find corrupt files, repair them and after a second run, found no issues.

Hope this helps someone else.

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By: Brian Fisher https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175941 Sun, 08 Mar 2026 03:39:02 +0000 https://davescomputertips.com/?p=151085#comment-175941 You should run Daily. Modern SSDs may be faster, but are prone to more errors. They are crap in my estimation. They do not last as long as the older H.D. and wear out at a rate of 1% per month!
I run this daily; dism /online /cleanup-image /restorehealth
sfc /scannow

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By: TomL https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175905 Sat, 07 Mar 2026 15:12:36 +0000 https://davescomputertips.com/?p=151085#comment-175905 Another good find. I took it one step further by writing a PowerShell script that automates the procedure. Copy the following into a note program and save it as a “.ps1” file.

# Relaunch as Administrator if not already elevated
if (-not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] “Administrator”)) {
Write-Host “Restarting script with administrative privileges…”
Start-Process powershell “-NoProfile -ExecutionPolicy Bypass -File `”$PSCommandPath`”” -Verb RunAs
exit
}

Write-Host “Starting DISM health restore…” -ForegroundColor Cyan
DISM /Online /Cleanup-Image /RestoreHealth

Write-Host “”
Write-Host “DISM completed. Press Enter to continue to SFC…” -ForegroundColor Yellow
Read-Host

Write-Host “Running System File Checker…” -ForegroundColor Cyan
sfc /scannow

Write-Host “”
Write-Host “All operations completed. Press Enter to close this window.” -ForegroundColor Green
Read-Host

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By: Kenneth Wolf https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175904 Sat, 07 Mar 2026 14:42:50 +0000 https://davescomputertips.com/?p=151085#comment-175904 Thanks for the tip Jim, but unfortunately I still get a error stating that it could not repair or repair failed.
As far as a VPN, it is not an issue since I don’t have one.
I guess it’s off to the forum or maybe a repair reinstall.

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By: JackB https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175902 Sat, 07 Mar 2026 10:48:00 +0000 https://davescomputertips.com/?p=151085#comment-175902 In reply to Kenneth Wolf.

I had the same problem. Try turning off your VPN. Worked for me. Hope it works for you too.

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By: Jim Hillier https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175888 Sat, 07 Mar 2026 05:56:50 +0000 https://davescomputertips.com/?p=151085#comment-175888 In reply to Kenneth Wolf.

This is a common issue that usually indicates Component Store corruptions.
Try this:

Download the portable freeware called FixWin 11: https://www.majorgeeks.com/files/details/fixwin_11.html
Create a System Restore Point or, better still, create and save a system image backup
Extract the files and then run the extracted executable
Select “System Fixes” (from the left hand panel)
At the top of the list of fixes you’ll see “Windows Component Store is corrupt. Repair it suing Deployment Imaging and Servicing Management (DISM)
Click the Fix button associated with that option

If that doesn’t fix it, suggest you take this over to the DCT Forum where we can provide further assistance.

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By: Kenneth Wolf https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175884 Sat, 07 Mar 2026 04:04:40 +0000 https://davescomputertips.com/?p=151085#comment-175884 I went with the recommended dism command and ended up going down a rabbit hole.
It would run up to 62.3 % then fail saying it couldn’t find the restore files anywhere. Tried to use a fresh, mounted copy of W1125H2 and it still failed. Lots of commands and no restore health. Checked with the scanhealth and checkhealth commands and was told that the file was repairable. No idea where to go next. Any ideas?

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By: Mindblower https://davescomputertips.com/sfc-scannow-dism-commands-explained/#comment-175865 Fri, 06 Mar 2026 18:33:50 +0000 https://davescomputertips.com/?p=151085#comment-175865 As always Jim, your explanation is simple and to the point. Do not know who recommended a program named Windows Repair Toolbox, but I use it often. Among the list of tools, it features both the sfc and dism commands. But selecting Dism, you receive the following options:
1 – CheckHealth
2 – ScanHealth
3 – ResoreHealth
4 – sfc / scannow
5 – close
And it is also portable, Mindblower!

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