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The exact code 0x8007042 is not identified in the Microsoft references for this problem, so do not apply a code-specific fix yet. Copy the complete error, including every digit and leading zero, and note whether it appeared in Windows Update, Microsoft Store, Microsoft Edge, or another application. The similar documented codes 0x80070005 (access denied) and 0x80070422 (Windows Update service not running) require different remedies.
Once you identify the component and full code, use the matching procedure below. Changing permissions blindly can create new security and update problems; for an access-denied Windows Update failure, Microsoft recommends identifying the exact file or registry object recorded in CBS.log before changing anything.
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Is “Download 0x8007042 Denied” a confirmed Windows error code?
Not in the Microsoft documentation relevant to Windows Update, Microsoft Store, or Edge. The string in the title may be truncated, mistyped, or generated by a third-party application. Microsoft documents nearby but distinct codes, including 0x80070005 and 0x80070422; they do not have the same cause or fix. The references reviewed do not establish that 0x8007042 is a standard Windows code, although that bounded finding cannot rule out every third-party program.
Microsoft describes 0x80070005 as E_ACCESSDENIED or insufficient permissions in Windows Update. Its guidance is to verify administrator access, then use the relevant CBS.log entry to find the denied object. Microsoft associates 0x80070422 with the Windows Update service not running. See Microsoft’s Windows Update troubleshooting guidance and the Windows client error reference.
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How do I capture the complete error before troubleshooting?
- Copy every character. Record the code exactly as shown, including the
0xprefix, all leading zeros, and any letters. A code that looks like0x8007042may actually contain another final digit. - Save the wording. Note whether the message says “Access Denied,” “unauthorized,” “download,” or something else. Microsoft’s wording for one Windows Update failure refers to a local user being denied authorization to download content.
- Identify the screen. Write down the application and page: Settings > Windows Update, Microsoft Store, Edge, or a different program. A code has meaning only in its component-specific context.
- Record the timing. Include the date and approximate time, whether the failure occurred during downloading or installation, and whether a restart changed it. This helps match a Windows Update entry in the component-servicing log.
- Check the device context. Note your Windows edition and version, whether the account is an administrator, and whether a company, school, proxy, or endpoint-security policy manages the computer.
Which troubleshooting path matches the application?
Use the product that displayed the message rather than assuming that every download denial is a Windows Update problem.
| Where the failure appears | What to verify first | Relevant Microsoft path |
|---|---|---|
| Windows Update | Full code, administrator access, Windows Update service, and the CBS.log entry |
Windows Update troubleshooting |
| Microsoft Store | Store registration for the user and firewall or proxy access to required endpoints | Store download troubleshooting |
| Microsoft Edge | Whether the complete code is 0x80070005 and whether the account can perform the requested installation |
Edge download and installation tips |
| Another application | The application’s own permissions, account, download location, logs, and network policy | Use that application’s support documentation; do not substitute a Windows Update code diagnosis |
How do I fix Windows Update error 0x80070005?
For a verified Windows Update 0x80070005, start with administrator access and then identify the specific object denied by Windows. Microsoft characterizes this code as access denied or insufficient permissions, not as proof that every system permission needs to be reset.
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Confirm that the account has administrator access
- Open Settings > Accounts > Your info and check the account type, or ask the device administrator to confirm it.
- If the computer is managed, sign in with the approved administrator account or ask the administrator to run the update. A standard user may be unable to download and install updates that require elevation.
- Retry Windows Update once with the correct account. If the same code returns, continue with log-based diagnosis instead of repeatedly changing permissions.
Find the denied object in CBS.log
Microsoft Learn recommends examining the error recorded in the component-based servicing log and identifying the particular file-system or registry object that triggered the denial. The log is commonly found at C:WindowsLogsCBSCBS.log; make a copy before searching so the original remains intact.
- Open the log in a text editor with administrator approval.
- Search for the exact error code and inspect entries immediately before and after the matching timestamp.
- Record the named file, folder, registry key, or servicing component. The object—not the entire Windows installation—is the target for further investigation.
- If the entry is unclear, provide the timestamp and surrounding lines to Microsoft support or your organization’s IT team. Do not take ownership of system objects or apply a blanket permission reset based only on the code.
Microsoft’s explanation and diagnostic approach are documented in the common Windows Update errors reference.
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Check for software or network interference
Microsoft lists ad-removal programs, web accelerators, download assistants, and some security software as possible contributors to unauthorized or HTTP 403 Windows Update failures. It also identifies firewall and proxy filtering as relevant to download connectivity.
- Review recently installed or updated traffic-filtering, download-assistance, privacy, or security software.
- Follow the product vendor’s documented pause, exclusion, or removal procedure for a controlled test. Do not leave security protection disabled after testing.
- If the device uses a proxy or managed firewall, ask the network administrator whether Windows Update endpoints are being filtered. A local administrator cannot necessarily change an organization-wide rule.
- Restart the computer, test Windows Update again, and note whether the error changes. A different code indicates a different branch, not a reason to reuse the old fix.
For the specific 403 and unauthorized-access scenarios, consult Microsoft’s Windows Update 403 troubleshooting article.
How do I fix Windows Update error 0x80070422?
Use this path only when the complete Windows Update code is 0x80070422. Microsoft associates it with the Windows Update service being stopped or not running.
- Press
Win+R, typeservices.msc, and press Enter. - Find Windows Update in the services list and open its properties.
- Check the current service state. If it is stopped and you have authorization, select Start, then apply the change.
- Close Services and run Windows Update again. If the service is disabled by policy, cannot start, or stops immediately, capture the service error and contact the device administrator rather than forcing a registry change.
The code-to-service association is described in Microsoft’s Windows client error documentation.
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What if Windows says the local user was denied authorization to download?
That wording indicates an authorization problem rather than a damaged download file. Microsoft’s Windows Update guidance says the local user needs Local Administrator privileges to download and install the update in this situation.
- Confirm which account is signed in and whether it has the required administrator rights.
- On a personal computer, sign in with the administrator account or have that account approve the update when prompted.
- On a work or school computer, do not attempt to bypass policy. Ask the administrator to verify the user’s update rights and any device-management restrictions.
- Keep the complete message and code with your support request; “download denied” alone does not identify the failing component.
How do I troubleshoot a Microsoft Store download denial?
Store downloads follow a separate path from Windows Update. Microsoft recommends verifying that Store is registered for the affected user and checking whether a firewall or proxy blocks required Store endpoints.
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Verify the user and Store registration
- Confirm that the Store is open under the same Windows user who receives the error, rather than under a different account.
- Sign out of the Store and sign back in with the authorized account if your organization permits it.
- Follow Microsoft’s Store download-failure instructions to verify Store registration for that user. Registration is user-specific, so changing a different account will not repair the affected profile.
Check endpoint filtering
- Ask the network administrator whether a proxy, firewall, DNS filter, or security gateway blocks Microsoft Store endpoints.
- On a managed device, provide the exact endpoint error and time to IT; local Store settings cannot override a centrally enforced rule.
- After an administrator confirms access, retry the download and record any changed code or message.
Use the current Microsoft Store app download-failure guidance for the registration and endpoint checks.
How do I troubleshoot an Edge download or installation denial?
Edge has its own download and installation support path. Microsoft associates Edge 0x80070005 with permission issues, so first confirm that the complete code really is 0x80070005 and that Edge—not Windows Update—displayed it.
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- Copy the full Edge message and identify whether the failure occurred while downloading the installer, running it, or updating an existing installation.
- Verify that the signed-in Windows account is allowed to install or update software on the device.
- If the computer is managed, ask the administrator whether installation policy, proxy filtering, or security software blocks Edge’s download or installer.
- Follow Microsoft’s Edge troubleshooting instructions for the exact stage that failed. Do not apply Windows Update service changes to an Edge-only error.
What should I do if another application shows the denial?
A third-party application may use a similar-looking hexadecimal code for an entirely different condition. Treat the application name, download destination, and its own log as the primary evidence.
- Open the application’s settings and note the download folder, account, and any administrator or network requirement.
- Check whether the destination folder is on a removable, encrypted, network, or cloud-synchronized drive. If the application’s documentation permits it, test a folder that the account can normally write to.
- Review the application’s event log or support page for the complete code. Do not infer that a code beginning with
0x8007has the Windows Update meaning. - Check security software and proxy policy using the same controlled approach as for Windows Update, keeping protection enabled except for a brief vendor-directed test.
- If only one application fails while Windows Update and Store work normally, report it to that application’s support team with the exact message and log details.
How can I tell whether permissions, a service, or the network is responsible?
Use the symptom and verified context together. The following distinctions prevent a fix for one subsystem from damaging another.
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|---|---|---|
Windows Update plus verified 0x80070005 |
Administrator access, then the denied object in CBS.log |
That all Windows permissions should be reset |
Windows Update plus verified 0x80070422 |
Windows Update service state in Services | That the account lacks permission |
| HTTP 403 or unauthorized access after security or filtering software was installed | Controlled software review and proxy/firewall checks | That the update package itself is corrupt |
| Microsoft Store only | User registration and required endpoint access | That Windows Update service changes will repair Store |
| Edge only | Edge’s permission and installation guidance | That the title’s incomplete code is the actual Edge code |
When should I escalate the problem?
Escalate when the code remains incomplete, the device is managed, the service is controlled by policy, or the log identifies a system object you cannot safely repair. Give support enough evidence to reproduce the branch rather than reporting only “download denied.”
- The complete code and exact message, copied rather than retyped from memory.
- The application or Windows page that displayed it.
- Windows version and edition, affected user account, and administrator status.
- The date and time of the failure and whether a restart or retry changed the result.
- Whether a proxy, firewall, endpoint-security product, download assistant, or other traffic-filtering software is present.
- For Windows Update, the relevant
CBS.logtimestamp and the named file, registry object, or servicing component. - Whether the computer belongs to a company or school and who administers its network.
Do not send an entire log publicly if it contains usernames, device names, paths, or other identifying information. Share only the relevant excerpt through your organization’s approved support channel.
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Frequently Asked Questions
Can changing folder permissions fix a 0x8007042 download denial?
Not safely by itself. The exact code and component must be confirmed first, and a Windows Update access-denied case should be tied to a specific object in CBS.log before any targeted permission change.
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Why can the same-looking denial happen in Store and Windows Update?
They use different registration, authorization, and network-endpoint checks. A Store account or proxy problem can therefore remain even when Windows Update services and permissions are normal.
Should I turn off antivirus or a proxy to test the download?
Only perform a brief, controlled test using the security product’s or administrator’s procedure. Never leave protection disabled, and do not change a managed proxy or firewall without approval.
What information does IT need to investigate this error?
Provide the complete code, exact wording, affected app, Windows version, account and management status, failure time, and any relevant CBS.log lines. That lets IT distinguish a permission, service, registration, or endpoint-policy failure without guessing.
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