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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Error 0x00002026 is the Windows code ERROR_DS_COMPARE_TRUE, which Microsoft defines as “The compare response was true.” It is a directory-services result from an Active Directory or LDAP comparison, not a diagnosis that Windows is damaged. The number alone does not identify the application, directory object, domain, or query involved, so the correct fix depends on where it appeared. Record the complete message and follow the symptom-specific path below before changing the registry, deleting caches, or reinstalling Windows.
What error 0x00002026 means
Microsoft’s Win32 error reference maps hexadecimal 0x00002026 to ERROR_DS_COMPARE_TRUE. Its description is: “The compare response was true.” In practical terms, a directory comparison operation returned a true result. The operation might be part of an LDAP query, an Active Directory task, an enterprise application, or a sign-in or domain process.
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The code is an operation result, not a complete diagnosis. It does not encode the process that made the request, the domain controller, the directory object, the account, the comparison attributes, or the query filter. Two computers can display the same number for entirely different underlying operations.
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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsThat is why a generic “0x00002026 fix” is unsafe. A directory comparison result does not, by itself, prove that system files are corrupt, that malware is present, that a Windows update failed, or that a registry cleaner is needed. The surrounding text and the application log determine what to do next.
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First, capture the evidence
Before attempting repairs, preserve enough context to identify the originating operation. This prevents a cache deletion or registry change from destroying information that a domain administrator or software vendor may need.
- Copy the complete error message, including any text before or after
0x00002026. - Note the application, installer, command, or Windows screen that displayed it.
- Record the exact action immediately preceding the error, such as signing in, joining a domain, searching a directory, installing an update, or restarting.
- Write down the date and time, account name, computer name, and whether the PC is joined to an organization’s domain.
- Open Event Viewer and inspect the log associated with the failure. Preserve the event source, event ID, server name, correlation ID, and full event text when those fields are available.
- Check the affected application’s own log files; directory software often records the query, target object, or server even when the Windows dialog shows only the numeric code.
Do not infer the cause from the number alone. If the code appears only once and the operation completed successfully, the value may simply be a status returned to software rather than a fault requiring repair.
Choose the troubleshooting path that matches the symptom
| Where the code appears | What it suggests | Start with | When to escalate |
|---|---|---|---|
| Sign-in, domain join, LDAP search, or an enterprise application | A directory comparison returned true; the value does not identify the object or query | Application and Event Viewer logs; directory filter, object attributes, permissions, connectivity, and time synchronization | When the query, object, server, or account cannot be identified, provide the complete event to the domain administrator or software vendor |
| Windows Update | The update workflow or a related component displayed the code; the code itself is not an update diagnosis | Windows Update troubleshooter, restart, then check for updates again | If the same operation fails after the documented steps, retain the update error details for Microsoft support or the device administrator |
| Upgrade or installation | Setup encountered a problem while another operation was running or permissions or hardware interfered | Disconnect nonessential hardware, check permissions, run the Windows Update troubleshooter, and preserve setup details | If setup still fails, use the exact setup message and logs rather than treating 0x00002026 as the root cause |
| Crash, stop screen, or repeated restart | The code may be shown alongside a broader stability problem; it does not identify a faulty driver or component | Safe Mode, recent-hardware review, Device Manager, free-space check, updates, and recovery options | If failures continue, use System Restore or another Windows recovery option and retain event information |
If 0x00002026 appears during sign-in, domain join, or a directory operation
Check the application’s comparison
A directory comparison asks whether an attribute or set of attributes matches a supplied value. Because ERROR_DS_COMPARE_TRUE reports a true comparison, the calling software may be using the result as part of normal decision-making. Review the application’s documentation and log to determine whether the event is being treated as an expected result or as an unexpected return code.
Look for the LDAP filter or comparison expression, the target object’s distinguished name, and the attributes being compared. Verify that the object exists in the expected organizational unit and that its values are what the application expects. The hexadecimal code cannot reveal any of those details.
Verify permissions and account context
Confirm which account performed the action and whether it has the permissions required by the application. A service account, interactive user, and installer can receive different directory responses. If the application uses delegated permissions, check that the account can read the target object and attributes and can perform the requested operation.
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Check domain-controller connectivity and time
Confirm that the computer can reach the intended domain controller and that name resolution and network access are working for the operation. Check the computer’s clock and time zone against the domain environment; significant time differences can disrupt authenticated directory communication even though they do not change the meaning of 0x00002026.
Use logs to identify the actual fault
Compare the timestamp in the application log with the corresponding Event Viewer entry. Capture the server name, event source, event ID, correlation ID, account, and target object. Give those details to the domain administrator or application vendor. They can determine whether the comparison was expected, whether the wrong filter was sent, or whether the application mishandled a valid true result.
Do not “repair” the registry for a directory result
There is no evidence in this code’s definition that a registry cleaner, cache deletion, or Windows reinstall will correct the underlying directory query. Changing registry values before identifying the process can create a second problem and remove useful diagnostic context.
If it appears during Windows Update
When the message is tied to checking for, downloading, or installing updates, use Microsoft’s Windows Update troubleshooter rather than assuming the directory meaning is the update cause. The troubleshooter runs diagnostics and can attempt fixes appropriate to the update workflow.
Windows 11
- Open Start > Settings.
- Select System > Troubleshoot > Other troubleshooters.
- Find Windows Update and select Run.
- Allow the diagnostics to finish and apply any offered correction.
- Restart the computer when prompted or after the troubleshooter completes.
- Return to Settings > Windows Update and check for updates again.
Windows 10
- Open Start > Settings.
- Go to Update & Security > Troubleshoot.
- Select Additional troubleshooters.
- Choose Windows Update > Run the troubleshooter.
- Restart when the process finishes, then check Windows Update again.
Keep the full update message and the time of the failure. If the same code returns, the update context, event details, and any accompanying error text are more useful than repeating generic repairs.
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Windows 10 support status
Microsoft states that free Windows 10 updates, technical assistance, and security fixes ended on October 14, 2025. A Windows 10 computer can therefore be fully updated only within the support that applied before that date or through whatever servicing arrangement its owner has separately obtained. This lifecycle fact is distinct from the meaning of 0x00002026 and does not turn the code into an update error.
If it appears during an upgrade or installation
Setup messages often combine a numeric return value with a more specific failure description. Preserve that description and the setup log before retrying.
- Disconnect nonessential external hardware, including printers, scanners, USB drives, and external disks.
- If the computer is docked, undock it and retry with only the hardware required to operate the system.
- Check that the account running setup has the permissions required for the installation.
- Run the Windows Update troubleshooter using the Windows 11 or Windows 10 path above when the setup is delivered through Windows Update.
- Restart the computer, then retry setup only after recording the exact message and relevant log entries.
If removing peripherals changes the result, reconnect them one at a time after the installation succeeds so the interfering device can be identified. If it does not, provide the setup message and log details to the administrator or software vendor; 0x00002026 alone cannot identify which installation component failed.
If it accompanies a crash or repeated restart
A crash screen or restart loop is a different symptom category. The code may be displayed alongside a broader stop or stability problem, but it does not identify the failing driver, device, or system file.
Start in Safe Mode
Use Windows recovery options to start in Safe Mode. If the problem disappears there, compare what loads in normal mode and review software or hardware added shortly before the failures began. Safe Mode is a diagnostic state; it does not by itself repair the underlying cause.
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Review recently added hardware
Remove newly installed or nonessential hardware and test again. For a laptop, disconnect docks and external devices. Reintroduce devices individually only after the computer remains stable.
Inspect Device Manager
Open Device Manager and look for warning icons. Record the device name and status text before changing it. The warning identifies where Windows sees a device problem; it does not establish that the device caused 0x00002026.
Check free disk space and updates
Make sure the system drive has adequate free space for normal operation and recovery tasks. Install applicable Windows and device updates through the supported update paths. If the machine is running Windows 10 after October 14, 2025, remember that Microsoft’s free update and security-fix support has ended.
Use recovery options when instability persists
If crashes continue after the basic checks, use System Restore or another Windows recovery option that matches the available restore points and recovery media. Back up important files first when the system is still accessible. Retain Event Viewer entries and the complete crash message for technical support.
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How to decide whether the code is actually a problem
- One-time value with a successful operation: Treat it as a status that may have been logged or surfaced by software. Confirm the result before making changes.
- Repeatable value in one application: Focus on that application’s query, account, directory object, and logs.
- Value only during updates: Follow the Windows Update troubleshooter path and restart before checking again.
- Value during setup: Remove nonessential hardware, check permissions, and preserve setup logs.
- Value with crashes or restarts: Use Safe Mode, hardware review, Device Manager, free-space checks, updates, and recovery options.
- Value on a domain-joined computer: Involve the domain administrator with the full event, server, account, timestamp, and correlation information.
The most important distinction is whether logs identify a process. A specific process and query provide a repair target; an isolated hexadecimal number does not.
Common mistakes to avoid
Assuming every hexadecimal code is a Windows corruption diagnosis
0x00002026 has a specific directory-services definition. It is not a general “Windows is broken” signal, and the value alone does not justify a reinstall.
Deleting caches before collecting logs
Cache cleanup can remove timestamps, request details, or correlation data needed to connect the application event with the directory or update event. Capture evidence first.
Changing the registry without an identified setting
No registry value is identified by the code’s definition. Unrelated registry edits can make troubleshooting harder and introduce new failures.
Confusing a true comparison with a successful complete task
“The compare response was true” describes the comparison result. It does not state that the larger sign-in, installation, update, or application workflow completed successfully. Check the surrounding message and final operation status.
Repeating generic fixes across unrelated symptoms
An update troubleshooter is appropriate for an update symptom; it is not a substitute for examining an LDAP filter or domain permissions. Likewise, Safe Mode is relevant to repeated crashes, not proof that a directory query is repaired.
What to send when you need help
Provide a concise incident record rather than only the code:
- Windows edition and version, and whether the system is Windows 11 or Windows 10.
- The complete message and the screen or application that displayed it.
- The action that triggered it and whether the issue is reproducible.
- Account name or account type, domain-join state, computer name, and timestamp.
- Event Viewer source, event ID, server name, correlation ID, and full event text.
- For directory operations, the application name, query or comparison details, target object, and permissions involved.
- For updates or setup, the troubleshooter result, hardware connected, and setup or update log details.
- For crashes, Safe Mode behavior, recent hardware or software changes, Device Manager warnings, free-space status, and recovery steps already attempted.
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The Bottom Line
Error 0x00002026 means that a directory comparison returned true. Identify the application and full message first, then use the matching update, setup, crash, or directory troubleshooting path. The number alone is not a reason to edit the registry or reinstall Windows.
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