Network cards - Unexpected error occurred


I have a computer windows 7 32 bits, when i click on properties of any network card (wireless, lan, bluetooth), i get an error message : "An unexpected error occurred." I can't disable, diagnose or view status of any network card, but they are working though.

What I have done so far:

- Uninstall every devices
- Tried in safemode
- Register netshell.dll and ole32.dll
- chkdsk /r
- sfc /scannow (found some corrupt files and repaired them)
- scan the whole computer with Malwarebytes

Nothing worked so far, any idea what I could do next ? I'm running out of ideas...


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nader alkahtaniNetwork EngineerCommented:
Reinstall TCP/IP stack
Use Network Troubleshooter
Use driver booster from iobit
nader alkahtaniNetwork EngineerCommented:
All that with administrator prevelegs
ti-guyAuthor Commented:
Yes, all done with the administrator account. I'll try these 3 things and come back, thanks.
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nader alkahtaniNetwork EngineerCommented:
if didnot success then try to ping if not success or replay more than 1 ms then your NIC may be damaged
ti-guyAuthor Commented:
I've updated everything with iobit, reinstall TCP/IP stack, network troubleshooter found nothing...

And I can ping

I still get the message "An unexpected error occurred" when i click properties...
nader alkahtaniNetwork EngineerCommented:
Do you see any thing in device manager,  choose view hidden devices,  is there any (?) mark or !
 Check with eventvwr tool
ti-guyAuthor Commented:
Thanks a lot for your time.

Everything is fine in device manager, every hidden devices.

I tried to install a newer version of  Intel PROSet/Wireless Wifi Software , and it asked to uninstall the old one first.

I get an error that the path 'C:\Windows\installer......\...Wireless.msi' cannot be found. Verify that you have access to this location and try again. or try to find the installation package..

Could this be related ?
ti-guyAuthor Commented:
I found the problem !

I had to go to the Component services (dcomcnfg) and change the properties of My computer. Under the tab Default Properties, put Impersonate instead of Anonymous.

Thanks for your time !

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ti-guyAuthor Commented:
DCOM problem.
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