- Software and digital services
- Operating system
0x80070003
Windows 0x80070003: Windows Update cannot find a path
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
Windows Update cannot find a path it needs to install. Run the Windows Update troubleshooter and, if the error remains, clear the update cache before trying again.
Safety first
Stop and check this first
- Do not delete system folders other than SoftwareDistribution to try to fix it: the missing path has to be identified from the log, not by blind cleaning.
Safe checks you can perform
- Windows Update troubleshooter
- Clear the Windows Update cache
- Retry after a restart
Leave these tasks to a qualified professional
- Do not attempt this professional task: Find the path in CBS.log
- Do not attempt this professional task: Reset Windows Update components
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Find the path in CBS.log
What they doThe technician opens the latest CBS.log in %Windir%\logs\CBS, searches for ", error" at the time of the failure and identifies the path the servicing stack cannot find.
They must show youthe log line with the path and its time.
In writingwhich path was missing and how it was restored.
Reset Windows Update components
What they doIf the log shows no specific cause, they reset the Windows Update components following Microsoft's procedure and retry the update.
They must show youthe update result after the reset.
In writingwhich components were reset and the date.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Windows Update troubleshooter
- Who:
- you.
- How:
- Start, Settings, System, Troubleshoot, Other troubleshooters, Windows Update, Run.
- Result that matters:
- whether the troubleshooter fixes something and the update finishes.
- If it finishes:
- the Windows Update components were out of order.
- If 0x80070003 remains:
- clear the cache.
- Evidence to keep:
- screenshot of the summary and the KB involved.
Evidence: Microsoft Windows upgrade and installation errors · Microsoft Windows Update troubleshooting
Clear the Windows Update cache
- Who:
- you, with an administrator account.
- How:
- stop the Windows Update service in services.msc, delete the contents of C:\Windows\SoftwareDistribution, start the service and check for updates.
- Result that matters:
- whether the update downloads again and installs.
- If it installs:
- the cache pointed to paths that no longer existed.
- If it fails the same way:
- the missing path is outside the cache and a technician finds it in CBS.log.
- Evidence to keep:
- time of clearing and the result.
Evidence: Microsoft Windows upgrade and installation errors · Microsoft Windows Update troubleshooting
Retry after a restart
- Who:
- you.
- How:
- save your work, restart from Start, Power, and check for updates again under Settings, Windows Update.
- Result that matters:
- whether the update finishes after a clean restart.
- If it finishes:
- a pending operation was completed by the restart.
- If not:
- the case goes to the technician with the KB and time.
- Evidence to keep:
- time of the restart and the result.
Evidence: Microsoft Windows Update troubleshooting
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Software and digital services
- Brand
- Microsoft Windows
- Product type
- Operating system
Known code variants
- 0x80070003
- 80070003
- ERROR_PATH_NOT_FOUND
What it means
Microsoft defines 0x80070003 as ERROR_PATH_NOT_FOUND: the system cannot find the path specified. Its guide for technicians explains that the servicing stack cannot reach a specific path, usually an invalid path to an executable, and that the exact path appears in CBS.log. Its page for users suggests the troubleshooter, resetting Windows Update components and clearing the cache. The code does not say which path is missing.
Warnings and stop conditions
- Loweditorial warning
Do not delete system folders other than SoftwareDistribution to try to fix it: the missing path has to be identified from the log, not by blind cleaning.
Evidence: Common Windows Update errors · Microsoft Windows Update troubleshooting
Symptoms and causes
Probable causes · in order
- Windows Update cache or components out of orderCommon
Confirmed if the troubleshooter or clearing the cache lets the update finish.
Evidence: Microsoft Windows upgrade and installation errors · Microsoft Windows Update troubleshooting
- Path to an executable that no longer existsPossible
Microsoft says it is usually an invalid path to an executable; only CBS.log shows which.
Evidence: Common Windows Update errors
- Servicing stack cannot reach the pathPossible
You can tell because the error persists after clearing the cache and the log names a folder it cannot reach.
Evidence: Common Windows Update errors
Virtual technician
Does 0x80070003 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Microsoft Windows upgrade and installation errors
Microsoft · 2026 · official_doc
- 2
Microsoft · 2026 · official_doc
- 3
Microsoft Windows Update troubleshooting
Microsoft · 2026 · official_doc
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