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sqlsqm.exe is generally associated with SQL Server Software Quality Metrics, a Microsoft SQL Server component used for software-quality and diagnostic telemetry. The filename alone does not prove that a copy is genuine or safe. Verify its full path, Microsoft Authenticode signature, version, hash, parent process, and the SQL Server installation on the computer before allowing it to run. If the file is damaged or missing, repair the matching SQL Server installation from original Microsoft media instead of downloading a replacement executable. This guide explains what the process does, how to authenticate it, why it may run, and how to recover from errors without breaking SQL Server.
What is sqlsqm.exe?
sqlsqm.exe is commonly identified as the SQL Server Software Quality Metrics executable. Third-party file catalogs describe it as a Microsoft-developed file used with Microsoft SQL Server; one catalog lists version 10.0.1600.22. Such catalogs can help identify a filename, but they are not proof that a particular copy on your PC was published by Microsoft.
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Microsoft’s SQM protocol documentation describes the general mechanism: “SQM-enabled clients produce and send SQM instrumentation data.” This data helps application developers understand product usage and failure information. In SQL Server, that role is part of diagnostic-data collection rather than a Windows core function.
Where should a legitimate copy be?
Observed copies are commonly reported in a versioned directory such as C:Program FilesMicrosoft SQL Server110Shared or C:Program FilesMicrosoft SQL Server120Shared. The executable may be started by sqlservr.exe. These are useful indicators, not guarantees: folder names and parent processes can be forged, and different SQL Server releases use different versioned paths.
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Is sqlsqm.exe safe?
There is no universal safe-or-malicious verdict based on the name alone. A copy is more plausible when it is inside the installed SQL Server directory, carries a valid Microsoft Corporation signature, matches the installed release, and is launched by an expected SQL Server process. An unsigned copy in a user-writable folder, or one found on a computer with no SQL Server installation, deserves investigation and scanning.
Verify the file before trusting it
- Open the location. In Task Manager, right-click the process and choose Open file location. Process Explorer can provide the same path and parent-process information.
- Check the directory. A normal installation is under a Microsoft SQL Server program directory. Treat
AppData,Temp,Downloads, a browser cache, or another user-writable location as suspicious. - Validate the signature. Right-click the file, select Properties, open Digital Signatures, and confirm that the signer is Microsoft Corporation and that Windows reports the signature as valid. A missing or invalid signature is a warning, not a harmless variation.
- Record identity details. Note the file version, product version, and SHA-256 hash. Compare them with trusted installation media or your organization’s approved software inventory for the exact SQL Server release.
- Scan it. Run a current Windows Security scan or your organization’s endpoint-protection scan on the file and its containing directory before permitting execution.
- Check the installation context. Confirm that the computer actually has the corresponding SQL Server instance, edition, architecture, language, and patch level. If those details do not line up, isolate the file and investigate instead of assuming it is a normal component.
| Observation | What it suggests | Recommended response |
|---|---|---|
| Microsoft signature valid; SQL Server shared folder; matching version | Consistent with an installed component | Keep it, continue monitoring, and repair through SQL Server Setup if it is damaged. |
| Valid-looking name but unsigned or invalid signature | Identity cannot be established | Quarantine or isolate the file and scan it before any replacement or deletion. |
| Located in AppData, Temp, Downloads, or another writable folder | Unusual location that malware can exploit | Preserve the path and hash, then perform an offline or full scan. |
| No SQL Server installation on the computer | The filename has no expected product context | Treat it as suspicious and determine which installer or process created it. |
| Started by an unrelated script, document, browser, or unknown executable | Parent-process relationship is inconsistent with SQL Server | Investigate the parent process and endpoint alerts before allowing execution. |
Path and parent-process checks are defensive clues, not certification. A sophisticated threat can copy a legitimate name or launch from a legitimate-looking directory, so signature, hash, installation records, and security scans must be considered together.
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Microsoft states that, by default, SQL Server collects information about how customers use the application. The documented categories include installation, usage, performance, and error information used to improve the product. An SQM component may therefore run during SQL Server activity, setup, maintenance, or diagnostic collection.
Telemetry behavior and configuration differ by SQL Server release and edition. Microsoft documents registry-based controls and notes that some options apply only to particular paid editions and supported versions. A setting in SQL Server Management Studio (SSMS) does not necessarily control every SQL Server telemetry component. If you need to change collection, follow the documentation for the exact SQL Server version and edition installed rather than disabling an unrelated service.
How do I fix sqlsqm.exe errors on Windows?
First capture the exact error text, event ID, file path, and SQL Server version. A message naming another DLL, a Windows Installer package, or a different version may indicate that sqlsqm.exe is only the component that exposed a broader installation problem.
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1. Do not download a replacement EXE or DLL
Random download sites cannot establish that a binary matches your SQL Server build, architecture, language, edition, or patch level. A mismatched or tampered file can introduce new crashes and security exposure. Do not replace sqlsqm.exe, or a similarly named DLL, from an unverified source.
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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →2. Confirm the installed SQL Server details
Open Apps & features (or Programs and Features on older Windows versions) and record the SQL Server release, edition, instance name, architecture, and installed service packs or cumulative updates. Keep this information available when obtaining media or contacting an administrator. Repair media should match the installed release, edition, architecture, language, and patch level as closely as possible.
3. Run SQL Server Setup repair
Use original installation media or a trusted mounted image for the installed release. Microsoft’s installer-cache guidance recommends trying repair first. From an elevated Command Prompt opened at the media’s root, run:
setup.exe /ACTION=REPAIR /INDICATEPROGRESS=TRUEFollow the Setup wizard for the affected instance and features. Repair can stop SQL Server services and may require a restart, so schedule it during an approved maintenance window. The process preserves the installation more safely than deleting a component by hand.
4. Restore missing Windows Installer cache files when Setup asks for them
SQL Server relies on Windows Installer cache files for updates and uninstall operations, and those cached files are unique to each computer. If repair reports missing MSI or MSP files, use Microsoft’s FixMissingMSI procedure with extracted original media. Keep separate source folders for the release’s RTM media, service packs, and cumulative updates, and follow the instructions for that specific SQL Server version. Do not substitute an installer package from another computer or release.
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5. Reboot and verify the instance
- Restart Windows if Setup requests it.
- Open SQL Server Configuration Manager and check that the relevant Database Engine and SQL Server Agent services (if installed) have the expected startup state.
- Start the affected service and test the application or game server that depends on it.
- Confirm that the repaired file remains in the expected SQL Server directory and that its signature and version are still valid.
6. Read the logs instead of guessing
Review the SQL Server error log and Event Viewer under Windows Logs and Application or System. Record the exact module name, exception code, service name, and timestamp. If the event identifies a different DLL, a failed Windows Installer action, disk errors, or permission problems, troubleshoot that dependency rather than repeatedly replacing sqlsqm.exe.
7. Handle antivirus detections carefully
Some SQL Server deployments require narrowly scoped antivirus exclusions for specific processes or data directories. Microsoft warns that an infected file placed in an excluded location cannot be detected by the antivirus scanner. Before creating any exclusion, verify the Microsoft signature and expected path, consult the system owner’s security policy, and limit the exclusion to the documented process or directory. Never create a blanket exclusion for a suspicious copy.
Can I delete sqlsqm.exe?
Do not delete it simply because it appears in Task Manager or because you do not recognize the name. If it belongs to an installed SQL Server feature, manual deletion can leave an incomplete installation, break repair or update operations, and cause dependent services to fail.
If you no longer need SQL Server, remove the relevant instance and shared features through SQL Server Setup or Windows’ installed-app controls, after backing up databases and confirming that no application depends on them. If the file is an untrusted duplicate, quarantine it after preserving its path and hash, then investigate the originating installer or process. Deletion is a malware-remediation decision, not a substitute for repairing a legitimate installation.
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When should sqlsqm.exe be treated as possible malware?
Escalate the file for malware analysis when one or more of these conditions apply:
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- The Authenticode signature is absent, invalid, or issued to an unexpected signer.
- The path is a user-writable location such as
AppData,Temp, orDownloads. - The computer has no SQL Server installation that could explain the file.
- The file version or hash does not match the installed SQL Server components or trusted media.
- An unrelated script, Office document, browser, or unknown executable launches it.
- Endpoint protection reports persistence, credential theft, code injection, suspicious network activity, or other behavior unrelated to SQL Server diagnostics.
Quarantine the suspect copy, preserve its full path and SHA-256 hash, run a full or offline scan, and investigate the installer or parent process that introduced it. Do not delete a production SQL Server component until you have established that it is a malicious replacement and made a recovery plan.
Which repair option is safest?
| Option | Trust and version control | Effect on the installation | Operational considerations |
|---|---|---|---|
| SQL Server Setup repair from matching media | Highest when media matches release, edition, architecture, language, and patch level | Preserves the installation while restoring registered components | May stop services or require a restart; schedule maintenance. |
| FixMissingMSI with extracted original media | Appropriate when Windows Installer cache files are missing and source media is authentic | Restores cache packages needed for repair, update, or uninstall | Requires release-specific instructions and separate RTM, service-pack, and cumulative-update folders. |
| Manual deletion | Cannot establish whether the file is legitimate | Can break services, updates, and future repairs | Use only after confirming a malicious duplicate and planning remediation. |
| Random EXE or DLL download | Unverified; version and integrity are unknown | May create mismatched dependencies or introduce malware | Not a safe repair method. |
| Broad antivirus exclusion | Reduces inspection rather than proving trust | Can allow an infected file to escape detection | Use only a narrowly scoped, policy-approved exclusion after verification. |
The practical choice is usually to authenticate the existing file, then repair the installed SQL Server version with matching Microsoft media. Escalate to your database or security administrator when the signature, path, hash, or parent process does not fit the installation.
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Frequently asked questions
How can I check which SQL Server version is installed from a query?
Connect with an account that can query the instance and run SELECT @@VERSION; in a SQL query window. The result identifies the Database Engine build and operating-system details; compare that build with the media you plan to use, while remembering that shared components may have their own patch state.
Will disabling SQL Server telemetry stop every sqlsqm.exe launch?
Not necessarily. Collection controls vary by SQL Server release and edition, and setup or maintenance operations can invoke components independently of an SSMS preference. Use the configuration guidance for your exact build and verify behavior after a controlled restart.
What evidence should I give an IT or security team?
Provide the complete path, file and product versions, SHA-256 hash, digital-signature status, SQL Server edition and build, parent process, creation or modification timestamps, and any Windows or endpoint-protection event IDs. Preserve the original file in quarantine rather than emailing or executing it.
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Can a failed SQL Server update cause a later sqlsqm.exe error?
Yes, an interrupted update can leave Windows Installer cache entries or shared binaries inconsistent, so the visible error may appear only during a later service start. Record the update that preceded the failure and use matching Setup repair or the documented cache-restoration process instead of copying a file from another machine.
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How can I check which SQL Server version is installed from a query?
Connect to the instance and run SELECT @@VERSION;. Compare the returned build with your repair media; shared components can have separate patch states.
Will disabling SQL Server telemetry stop every sqlsqm.exe launch?
Not necessarily. Controls differ by SQL Server release and edition, and setup or maintenance tasks may invoke components independently of SSMS preferences.
What evidence should I give an IT or security team?
Provide the full path, versions, SHA-256 hash, signature result, SQL Server build, parent process, timestamps, and any security event IDs. Keep the original in quarantine rather than executing or emailing it.
Can a failed SQL Server update cause a later sqlsqm.exe error?
Yes. An interrupted update can leave installer-cache entries or shared binaries inconsistent; use matching Setup repair or the documented cache-restoration process.
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