Reset Windows Update in Windows 10  

Hello @Martini07,
Welcome to TenForums.

Martini07 said:

I tried dism /online /cleanup-image /restorehealth in cmd , but gives me error 0x800f081f, " the source files could not be found".

Were you connected to the Internet when you ran DISM?

If you want to Download and use an ISO for the Repair [ I wrote this to hopefully make it easy ], then . . .

 DISM - Online RestoreHealth FAILS [ Use Source ]

DISM /Online /Cleanup-Image /RestoreHealth attempts to Repair any Corrupted, Damaged, or Missing files.

However, this will NOT work if . . .

• You are NOT connected to the Internet.
• The Windows Update Service is NOT working correctly.

A simple solution to this is to Download an ISO [ maybe on another computer if necessary ] and use that to perform the Repair using the /Source [ the install.wim file ] Parameter, and the /LimitAcess Parameter [ tells DISM NOT to use the Windows Update Service for Repair ].

NOTE: The install.wim can contain more than one Edition.
IMPORTANT: The ISO MUST be the SAME Version, Edition, & Language as the installed OS.

ISO download information is available if required.

---

IMPORTANT: In the CODE below, you will need to CHANGE the following . . .

• # to the Mounted Drive Letter.
• * to the Index Number of the installed OS.

---

[1] Elevated Command Prompt - Press the Win + X keys together > Command Prompt (Admin).

[2] Mount - Double-click the ISO to Mount it.

[3] Find Index Number - Type the following into the Elevated Command Prompt > Enter.

Code:

Dism /Get-WimInfo /WimFile:#:\Sources\install.wim

[4] Repair - Type the following into the Elevated Command Prompt > Enter.

Code:

Dism /Online /Cleanup-Image /RestoreHealth /Source:Wim:#:\Sources\install.wim:* /LimitAccess

[5] Unmount - Type the following into the Elevated Command Prompt > Enter.

Code:

PowerShell Dismount-DiskImage -DevicePath \\.\#:

[6] Restart the computer.

I hope this helps.

Hello @Martini07,

Martini07 said:

Yes, I was connected to internet. Was that bad?

No, to run DISM on an ONLINE OS, you MUST be connected to the Internet to allow the Repair of any Component Store corruption.

I hope this helps.

Hello @Martini07,

Martini07 said:

When you say that I have to download an ISO, is there a way to use the one already installed in the laptop in the recovery partition?

It is best to Download and use an ISO because it will be upto date.

As the computer is only a couple of weeks old, you shouldn't be having problems . . .

> Did anything specific happen around that time?
> Have you made ANY hardware changes/upgrades?
> Have you installed ANY new software?
> Did you install ANY WU's or Driver Updates?
> Have you got a Restore Point that you can use that is prior to this happening?
> Did you install or uninstall anything around that time?
> Are you Overclocking?

I hope this helps.

Hello @Martini07,

Martini07 said:

I guess my last resort will be to do a reset pc with option to keep my files.

Probably.

Martini07 said:

Where do I download an ISO of windows 10 version 2004?

ISO Resources - Including MS Servers:

> Download UUP Dump files from Windows Update servers
> Download Windows 10 Disc Image [ ISO File ]
> Media Creation Tool & ISO Downloader - Rufus
> Microsoft Windows and Office ISO Download Tool 8.44 - MajorGeeks
> TechBench by WZT - Includes OLDER Windows 10 ISO's - RECOMMENDED
> Universal Windows Downloader [ Portable ] - MajorGeeks
> Windows 10 ISO & Office ISO Download Tool - Heidoc
> Windows ISO - Windows 10 Download Database

I hope this helps.