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servicehub.identityhost.exe is associated with Visual Studio ServiceHub activity, so a copy inside a known Visual Studio installation may be legitimate. The filename alone is not proof of safety, however: Dr.Web documents malware that created a same-named file in C:UsersPublic. Check the full path and publisher before treating an error as an ordinary Visual Studio problem.
For the Visual Studio 2019 crash reported to Microsoft on Windows Server 2019, the practical sequence is to close Visual Studio, rename its identity and licensing-cache folders, reopen the IDE, and then use Visual Studio Installer repair if necessary. A file in an unexpected location should instead be investigated and scanned before you try to replace or delete anything.
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What is servicehub.identityhost.exe?
The name belongs to the family of ServiceHub processes used by Visual Studio. Microsoft’s staff response to a June 17, 2024 Learn Q&A thread about Visual Studio 2019 identifies an example ServiceHub installation tree under C:Program Files (x86)Microsoft Visual Studio2019<edition>Common7ServiceHubHostsServiceHub.Host.netfx.x86. The exact edition, host folder and installed drive can differ, so that string is an example from the thread, not a universal path or a guarantee that every file with this name is genuine.
ServiceHub.IdentityHost.exe can therefore appear as part of opening, signing in to, licensing or modifying Visual Studio. An Aras Test Automation Framework 1.50 installation guide also lists the process among Visual Studio-related processes that may need to be shut down during installation changes. That corroborates its presence in a developer-tool environment, but does not describe the executable’s internals or certify a particular copy.
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Why the filename is not enough
Windows permits unrelated programs to use the same filename. Dr.Web’s entry for Trojan.MulDrop35.50277 records a file named servicehub.identityhost.exe created in C:UsersPublic; the database entry was added on February 11, 2026 and its description on February 12, 2026. This is evidence that malware can reuse the name, not a finding that every file in that directory is malicious.
How can I tell whether my copy is legitimate?
Use three pieces of evidence together: where the file is, whether it belongs to an installed Visual Studio instance, and what happened when it ran. A familiar name with an unexpected path deserves investigation even when the error message mentions Visual Studio.
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| Evidence axis | More consistent with a Visual Studio component | Reason for caution |
|---|---|---|
| Path | Inside the installed Visual Studio directory, such as the ServiceHub host tree shown in Microsoft’s response | A user, Public, temporary or otherwise unrelated directory; Dr.Web’s documented sample was in C:UsersPublic |
| Publisher and integrity | The file is associated with the Visual Studio installation and has an expected Microsoft signature or publisher record | No known Visual Studio installation, an unexpected publisher, or a signature that cannot be verified |
| Symptom | The process fails while opening or repairing a known Visual Studio installation | A standalone process appears on a computer with no Visual Studio installation, or security software flags it |
| First response | Reset the affected Visual Studio caches and use the Installer repair path | Do not launch, replace or delete the file before a trusted security scan and further investigation |
Record the full path before changing anything
- Open Task Manager and locate the process on the Details tab if it is running.
- Use the process’s file-location command, or search for the filename in File Explorer, and copy the complete path. Do not rely on a shortened display name.
- Note whether the computer actually has Visual Studio installed, which version and edition it is, and whether the error appears only when the IDE starts.
- Inspect the file’s properties for the publisher and signature information available on your Windows installation. Treat a missing or unexpected publisher as a reason to stop the software-repair steps and investigate.
The sources do not establish a universal hash or a single signature value for this executable. A path that looks plausible is useful evidence, not a cryptographic guarantee.
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What causes a “ServiceHub.IdentityHost.exe has stopped working” error?
The Microsoft thread describes a failure while opening Visual Studio 2019, but it does not prove one universal cause or a success rate for any fix. The practical possibilities fall into separate groups:
- Identity or licensing-cache state: The Microsoft responder specifically suggested renaming the user’s
.IdentityServicefolder and the Visual Studio OnlineLicensing cache. A damaged or inconsistent cache is therefore a plausible explanation for the reported IDE crash. - Damaged installation files: The response also discussed replacing the executable and its configuration file with matching files from a corresponding Visual Studio installation. That is a case-specific suggestion, not a reason to download a random standalone executable.
- Version or edition mismatch: A file copied from a different Visual Studio release, edition or servicing state may not match the rest of the installation.
- Filename reuse by malware: Dr.Web’s Trojan.MulDrop35.50277 entry shows why a suspicious location must be handled as a security issue rather than as an IDE-cache problem.
How do I reset the Visual Studio identity cache safely?
These steps follow the Microsoft staff suggestion for the Visual Studio 2019 case. They are not a guaranteed fix for every Visual Studio release or Windows configuration, and the cited thread concerns Windows Server 2019.
- Close Visual Studio completely. Exit every open IDE window. If the ServiceHub process remains, wait briefly and confirm that the IDE is no longer using the folders you will rename.
- Open the user-local folder. In File Explorer’s address bar, enter
%LOCALAPPDATA%.IdentityService. If the folder exists, rename it to.IdentityService_backup. Renaming preserves the old data so you can restore it if needed. - Reopen Visual Studio. Let the IDE recreate its identity data and test the action that previously produced the error. Sign-in or licensing prompts may appear again because the old cache is no longer being used.
- Keep the backup for now. Do not empty the renamed folder until the IDE opens and the account and licensing functions you need have been checked.
- If the crash remains, close Visual Studio again. Go to
%LOCALAPPDATA%MicrosoftVSCommonOnlineLicensingVisualStudio16.0and rename the16.0folder, for example to16.0_backup. The16.0directory corresponds to the Visual Studio 2019 context in the cited response; another Visual Studio generation may use a different directory. - Launch the IDE and test again. If this second reset resolves the problem, retain both backup folders until you are confident that sign-in, licensing and normal project work are stable.
Microsoft staff summarized the first reset this way: “Close VS 2019, rename C:UsersusernameAppDataLocal.IdentityService folder(for example `.IdentityService_backup`), launch VS again.” The informal wording is preserved because it is the responder’s direct instruction; substitute your own Windows user profile rather than the literal word username.
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What should I do if the cache reset does not work?
Run Visual Studio Installer repair
Open Visual Studio Installer from the Windows Start menu, select the affected installation, open its additional-actions menu and choose Repair if that option is offered. Allow the installer to complete, restart Windows if it requests one, and test Visual Studio before restoring or deleting the renamed cache folders. Repair is a supported recovery route, but the Microsoft thread reports that repair had not solved that particular instance, so do not treat it as certain.
Consider file replacement only as a controlled, matching-version measure
The Microsoft response mentioned obtaining the executable and its .config file from a corresponding Visual Studio installation when corruption was suspected. If you follow that case-specific idea, the donor must match the Visual Studio version, edition, architecture and servicing state, and the files should come from a machine you trust. Back up the originals first and avoid websites offering a single downloadable executable; an unmatched file can create a different failure or conceal a security problem.
Check that the error really belongs to Visual Studio
If the computer has no known Visual Studio installation, or if the path you recorded is outside the installation tree, stop applying IDE-cache fixes. The Microsoft advice addresses a Visual Studio 2019 startup failure; it does not establish what an identically named file on an unrelated system is doing.
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How should I handle a suspicious copy?
Do not double-click an unexpected copy merely to see what it does. Preserve the path and other identifying details, disconnect the machine from sensitive work if your organisation’s incident process requires it, and use trusted security software for a full scan. Dr.Web’s entry specifically recommends a full scan with Dr.Web CureIt!; follow your security team’s approved scanner if a managed device uses a different tool.
- Record the full path, file name, and the time and symptom that led you to it.
- Do not delete a file solely because its name matches the one in the malware entry; first let the security product identify, quarantine or remove it according to its own instructions.
- After remediation, restart and check whether Visual Studio is installed and intact. If a legitimate component was quarantined, repair the matching Visual Studio installation rather than downloading a replacement from an unofficial site.
- On a work or school computer, provide the path, publisher information and scan result to the administrator so they can check related accounts and machines.
The Dr.Web record is a single threat entry, not a prevalence measurement. Nothing in the cited material supports saying that every servicehub.identityhost.exe process is malware or that a particular scan will find a threat.
Which fix fits my symptoms?
| Your situation | Best next action | Why |
|---|---|---|
| Visual Studio 2019 on the reported type of Windows Server 2019 setup; the process path is inside the Visual Studio installation | Close Visual Studio, rename the identity cache, then the 2019 licensing cache if needed | These are the Microsoft responder’s case-specific steps |
| The IDE still fails after cache resets and the path is legitimate | Use Visual Studio Installer repair; consider only carefully matched replacement files afterward | Repair addresses installation state without relying on an unofficial download |
The file is in C:UsersPublic, a temporary folder, or another unexpected location |
Do not launch it; perform a trusted full scan and follow incident-response guidance | Dr.Web documents malware using that location and filename |
| No Visual Studio installation is present | Prioritize security investigation over IDE troubleshooting | The Microsoft advice is specifically about a Visual Studio installation |
What should I avoid?
- Do not assume the filename proves Microsoft origin.
- Do not delete a legitimate component before recording its path and checking the installation that owns it.
- Do not download a replacement executable from an unofficial site.
- Do not copy files across Visual Studio versions or editions and expect them to be interchangeable.
- Do not treat the cache-renaming suggestions as a guaranteed fix outside the Visual Studio 2019 case described by Microsoft.
- Do not describe the February 2026 Dr.Web entry as proof that your particular computer is infected; it is a reason to scan and verify.
What are the limits of the published advice?
The primary troubleshooting source is a Microsoft Learn Q&A thread dated June 17, 2024. It records one user’s “ServiceHub.IdentityHost.exe has stopped working” report while opening Visual Studio 2019 and a Microsoft staff response; it does not establish a universal cause, broad compatibility across Visual Studio versions, or a repair success percentage. The user reported restarting the server, repairing Visual Studio and trying /safemode without resolving that particular case.
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The security warning comes from Dr.Web’s Trojan.MulDrop35.50277 entry, added to its database on February 11, 2026, with the description added February 12. That record demonstrates filename reuse by one malware sample. The Aras guide is corroborating evidence that the process occurs in a Visual Studio environment, not an explanation of how the executable works.
Once you have verified the path and publisher, choose one branch: reset caches or repair for a genuine Visual Studio startup problem; security scanning and incident response for an unexpected file. Mixing the two branches can destroy useful evidence or leave a damaged installation unresolved.
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Frequently Asked Questions
Can servicehub.identityhost.exe run when Visual Studio is not visibly open?
Yes, Visual Studio-related services can remain active during background installation or modification work; the Aras installation guide lists the process among those that may block such changes. Background activity alone does not establish that a copy is safe, so the file path and publisher still matter.
If I renamed the cache folders, how can I restore them?
Close Visual Studio again, remove the newly created cache folder only if you have confirmed it is not needed, and rename the backup folder back to its original name. Restore one folder at a time so you can identify which cache affects the behavior.
What details should I give Microsoft or an administrator?
Provide the exact error wording, Windows edition, Visual Studio version and edition, complete executable path, publisher or signature result, and the time the failure occurs. Also state whether each cache was renamed and whether a trusted scanner reported anything.
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Does Visual Studio /safemode prove that ServiceHub.IdentityHost.exe is the cause?
No. In the cited report, the user tried /safemode without resolving that case, and the thread does not turn that result into a diagnostic rule. Safe-mode behavior can narrow the problem, but it cannot authenticate an executable or distinguish every cache, installation and security failure.
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