The content source cannot be accessed

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Event 3036, Find content source…unreachable (resolved)

A Windows 7 machine stops being responsible after a while and the following error is displayed in the Application log of Event Viewer: “Event 3036, Find. The content source <csc: //{S-1-5-21-4218163875-3405771635-1885838064-500}/> cannot be accessed. Context: Application, SystemIndex Catalog Details: (HRESULT: 0x80004005) (0x80004005)”.

The Event 3036 error is related to the Windows Search service and specifically to the Windows Index feature. The “csc” in the event details stands for “Client Side Caching” and occurs if Offline File Indexing is enabled.

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Event search 3036


How to resolve the error “Event 3036, look for ‘Unable to access content source’ in the event log.

Pour corriger les erreurs d’ID d’événement 3036, essayez d’abord de réparer les problèmes de Windows Desktop Search avec l’outil Microsoft FixIt. Si après avoir exécuté l’outil, vous obtenez toujours l’erreur, excluez les fichiers hors ligne de l’indexation, puis reconstruisez l’index. Pour faire ça:

1. Abra el Panel de control de Windows .

2. Haga doble clic para abrir Opciones de indexación .

Control Panel.


3. Haga clic en Modificar .

indexing options


4. Desmarque Archivos sin conexión* y presione OK .

* Desmarque opcional y la casilla de verificación Historial de Internet Explorer .

indexing options1


5. Luego haga clic en Avanzado .

advanced indexing settings


6. En la sección Solución de problemas, haga clic en el botón Reconstruir .

index rebuild


7. Press OK to rebuild the Index.

rebuilt indexing


8. Wait until the index rebuilding is completed and then close Indexing options.

9. Restart you computer and check if you still receive the “Event 3036” warning message in Event Log.


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I can’t open a content source in search serviceapplication?

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Here i tried to start crawl but its not working,I got this type of error

Sorry, an error occurred System.InvalidOperationException: The search service is unable to connect to the machine hosting the administration component. Verify that the admin component ‘2bfd134a-72d2-424a-825c-04d1f8e9e1d9’ in the search application ‘Search Service Application’ is in good condition and try again. on Microsoft.Office.Server.Search.Administration.SearchApi..ctor (SearchServiceApplication application) on Microsoft.Office.Server.Search.Administration.SearchApiFactory.CreateSearchApi (SearchServiceApplication application) on Microsoft.Office.Server.Search.Administration.SearchServiceApplication. get_SearchApi() on Microsoft.Office.Server.Search.Administration.ContentSourceCollection..ctor(Content parent) on Microsoft.Office.Server.Search.Administration.

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edited Aug 17, 2016 at 12:17

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First, check your Search Application Topology on the start page of your Search Service Application:

enter image description here

If all components are not green, then you have a problem that may be difficult to resolve. You should check Manage services on the server and see that the correct services are started. If so and you still have errors, the quickest way to fix this is to recreate the Search Service Application in my experience.


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modified on August 18, 2016 at 11:31

answered on August 17, 2016 at 12:13

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How to eliminate event code 3036 warning How to eliminate event code 3036 warning wchull (MIS)


7 Sep 10 09:36

My Windows 7-64 bit machine reports an event 3036 warning every time the WSearch service starts. Although benign, I wish I could fix this. I searched the internet for a solution and found it empty handed. not found. (HRESULT: 0x80041201) (0x80041201) Content source csc://s-1-5-21-287814290-815585838-4093042447-1000 is not accessible If anyone knows how to eliminate this event please let me know know.  

RE: How to eliminate event code 3036 warning

Lemon13 (MIS) 7 Sep 10 10:02

Check the sid and which user it belongs to, from there dig deeper


RE: How to eliminate event code 3036 warning

linney (TechnicalUser) 7 Sep 10 16:11

There are some things mentioned here that might give you an idea in that they suggest the error is caused by a missing registry key (or incorrect access permissions)? Windows Desktop Search 3.0 does not return Outlook 2007 email items and Event ID 3036 is logged in the Application log

RE: How to eliminate event code 3036 warning

wchull (MIS)


9 Sep 10 21:11

Linney, thanks for the response. The link to the article you sent me wasn’t exactly my problem but I’m getting a bit ahead of it. on another post, someone mentioned that the CSC in the content source line means “client side cache” and that if I were to disable offline file indexing, that would resolve the warning. It made. Now I’m trying to figure out if I fixed a problem or just hid it. Need to do research.

RE: How to eliminate event code 3036 warning

wchull (MIS)


10 Sep 10 09:06

I’m still a little puzzled by the event and maybe someone can shed some more light on this for me. From what I understand, if you want to work on files offline, a copy of the file would be stored somewhere on my PC, which I assume is the C:\Windows\CSC folder and the way I configured before the search service attempted to index all offline files stored in this folder. I would also “assume” that if you’ve never needed to work with offline files, the CSC folder would be empty, so nothing to index, but the warning wasn’t that there was nothing to index, the warning was that something was not accessible. . What I “assume” is

RE: How to eliminate event code 3036 warning

linney (TechnicalUser) 10 Sep 10 15:17

If you’ve gone as deep into that C:\Windows\CSC\v2.0.6 location as possible, making sure that the access permissions allow access to all files along (and below) that path, then maybe be that the error would not occur? HOW TO: Take ownership of a file or folder in Windows XP (or Vista) Error message: “Access is denied” when you are trying to open the NTFS file system Folders;EN-US;Q823306#appliesto Add encrypted files to the list of possible reasons for access denied .

RE: How to eliminate event code 3036 warning

wchull (MIS)


10 Sep 10 17:58

Linney. Long story short, I tried exploring the CSC folder and in the only subfolder of CSC I was denied access, but when I looked at security it said it didn’t. there wasn’t even an owner of the file, so I took ownership of it. I then dug into that folder and found 2 other folders that didn’t have owners either, so I took ownership of those two folders. Note that taking possession was the only thing I did. I then went back into the indexing feature in the control panel, enabled indexing on offline folders, restarted my system and NO warning. It seems that the

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