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Windows 7 firewall service won’t start

Problem

When you attempt to start the Windows 7 firewall service you receive the following error

Windows could not start the Windows Firewall on Local Computer. For more information, review the system event log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 5.

If you look in the System Event Log, you will see event 7024 from the Service Control Manager

The Windows Firewall service terminated with service-specific error Access is denied..

Cause

This may be caused because the “NT Service\MpsSvc” account does not have adequate permissions on the following registry key

HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess

Solution

  1. In Registry Editor, browse to the key HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess
  2. Right click SharedAccess, and click Permissions.
  3. Click Add.
  4. In the “Enter the object names to select” field, type “NT SERVICE\mpssvc”. Then clickΒ Check Names. The name should change to MpsSvc
  5. Click OK.
  6. Select Full Control in the Allow column.
  7. Click OK.

Applies To

Windows 7 (all versions) / Windows Vista (all versions)

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Discussion

89 Responses to “Windows 7 firewall service won’t start”

  1. Thank you!
    This solved the same problem on Windows Server 2008R2

    Posted by Fiko | May 26, 2012, 6:48 pm
  2. Thanks! this solved my problem

    Posted by ThanksYou | May 31, 2012, 4:14 pm
  3. Just wanted to say thanks.

    After getting a Trojan hat successfully eliminated my reg entries and disabling services entries, I was in a pickle.
    I was able to download the BFE reg file and MPSSVC reg file and import them, but still had the error 5 issues.
    I spent hours trying to find out how to renable them, even the Microsoft FixIt program for Windows Firewall couldn’t do it, kept saying the the problem (virus or whatever) still existed, even after I made sure it was gone.
    This got my firewall up and running in just a few short seconds.

    Thanks!

    Posted by Sean | June 5, 2012, 8:49 am
  4. After a good 6 hour trial and error troubleshooting, this worked at last πŸ˜›

    Thanks a ton :mrgreen:

    Posted by Vinu | June 7, 2012, 4:13 am
  5. Thank you, with your advice I was able to restart “firewall services”.

    Posted by fwborja | June 15, 2012, 8:57 pm
  6. Thanks dude. After trying A MILLION different things, this finally worked. Now i can finally go to bed.

    Posted by Scott | July 10, 2012, 12:27 pm
  7. Excellent. Very kind of you to post this information. Thanks.

    Posted by Brian Norman | July 12, 2012, 3:47 pm
  8. been at this for ages. thanks for the solution!!!

    Posted by spocket | July 16, 2012, 5:50 am
  9. Thanks very much!

    Posted by John M | July 19, 2012, 5:09 pm
  10. Thank you so much!!! I’ve been at it for hours and this finally solved the problem!

    Posted by Carmen | July 21, 2012, 6:59 pm
  11. Hats off bro… God Bless you, u r simply the best…

    Posted by Junaid Khan | July 23, 2012, 3:01 am
  12. Solved my problem, after much wasted time on MS sites. Thank you.

    Posted by bagby | July 26, 2012, 11:18 pm
  13. Solved the problem. Thanks a lot!

    Posted by MDS | August 1, 2012, 7:23 pm
  14. UN BE LEAVE ABLE !!
    DITTO issue per Sean June 5, 2012 at 8:49 am.
    Virus had hosed daughter’s system 10 days ago.
    Got most things running again (Win Update, etc).
    Could NOT get firewall running … until NOW.
    I did stuff with keys BELOW that one, but not the main key.
    FIXED … thanks so much.
    joe

    Posted by DatabaseMX | August 4, 2012, 9:34 pm
  15. Solved it for me on win7 Ultimate.
    Many thanks

    Posted by Ant | August 7, 2012, 3:47 pm
  16. fuggin eh! Finally the answer that worked!
    Thanks

    Posted by Doug | August 14, 2012, 3:45 pm
  17. thank

    problem is resolved

    any issue then please visit vscriptlance.com

    most welcome

    Posted by pramod kumar | August 30, 2012, 5:16 am
  18. Unfortunately did not work for me. I’m getting prompted with “Unable to save permission changes on SharedAccess. Access is denied.”

    Man thisis frustrating.

    Posted by AB | September 2, 2012, 6:47 pm
  19. Great! It works on Windows 8 too.

    Posted by Wenzor | September 3, 2012, 12:44 am
  20. Finaly Resolved problem thanks man.

    Posted by Cintan Patel | September 3, 2012, 9:23 am
  21. Solved it for me on win7 thanks lot πŸ˜€

    Posted by roshan | September 4, 2012, 7:50 am
  22. Thanks!!…I was ready to bang head into wall…I am pretty sure a virus caused this after a “Gadget” install.

    Posted by Dave W | September 11, 2012, 5:03 pm
  23. that was awesome, just what i needed! no one else had the answer!

    Posted by MrSinatra | September 20, 2012, 8:45 pm
  24. So easy! got this problem after virus, went through hours of microsoft fixes and other reg fixes before i stumbled upon your solution. many thanks you’re a genius!!! πŸ˜€

    Posted by Mick F | September 24, 2012, 5:22 am
  25. You are awesome!!! Thank you so much…. πŸ˜€ πŸ˜€

    Posted by Disturbed | September 27, 2012, 3:19 pm
  26. πŸ˜€ πŸ˜€ πŸ˜€
    You’re a star, I’ve been searching for 2 days for a solution to this problem, this is spot on.

    Many thanks, I can sleep again πŸ˜‰
    Paul

    Posted by Paul | October 3, 2012, 3:21 am
  27. Thank you! Thank you! Thank you!

    Posted by Rachel | October 8, 2012, 8:37 pm
  28. Thank you very much!!
    I’ve been trying different ways in the past few hours, but no one worked.
    Your solution is amazing!

    Posted by Cong Zhang | October 9, 2012, 1:42 am
  29. Thanks! this solved my problem πŸ˜€

    Posted by Yuriy | October 11, 2012, 9:13 am
  30. Thanks for a great solution!!! πŸ™‚

    Posted by Rich Seely | October 24, 2012, 8:22 pm
  31. Awesome! Was up all nite trying to troubleshoot a relatives machine. Had the FBI virus on it… Nasty one! Looks free and clear from here.. thanks for the help…

    Posted by Pete | October 25, 2012, 2:19 pm
  32. just found your solution after MANY hours of searching. Worked as described!

    Posted by Bruce Kerr | October 25, 2012, 11:24 pm
  33. Thank you very much, after much research, many tests, it is this solution which enabled me to find my firewall.
    Congratulations! πŸ˜‰

    Posted by Thierry | November 1, 2012, 4:55 am
  34. Great!!!! this started the firewall. Thank you for the help.

    Posted by Prudhvi | November 5, 2012, 11:38 am
  35. It works fine!
    Thanks πŸ˜›

    Posted by Naresh | November 18, 2012, 12:41 am
  36. Worked for me, cheers!

    Posted by Jeremy M. | November 22, 2012, 11:47 am
  37. Thank you that was very helpful.

    Posted by Narayanan T | November 30, 2012, 10:14 pm
  38. Thanks so much, after looking everywhere, this is the solution for me to fix the firewall service not starting. Cheers!

    Posted by Rain Wilber | December 3, 2012, 7:59 pm
  39. oh man! i spent so many hours surfing the net to find the answer. but your 7 steps solution finally restored my firewall! a thousand thanks to you, Kent!

    Posted by bluefox1991 | December 4, 2012, 6:26 pm
  40. Thank you πŸ™‚ :mrgreen:

    Posted by arvil | December 11, 2012, 3:34 am
  41. Thank you soooooo much!!!!! πŸ˜›

    Posted by Diana | December 18, 2012, 2:34 pm
  42. Excellent, Its working fine.

    Thanks

    Posted by Mohan | December 23, 2012, 11:06 pm
  43. After trying to figure this out for days, this one did it !!! You are awesome, thank you so very much!!!

    Posted by Ron | December 24, 2012, 12:52 pm
  44. :mrgreen:
    Thank you very much !!!

    Posted by Exony | January 4, 2013, 6:59 am
  45. Thanks so much, it worked!!!!!!!!!!!!!! πŸ˜€

    Posted by Djaantjie | January 8, 2013, 12:11 pm
  46. You a frigg’n genius

    Posted by Mark | January 12, 2013, 8:24 am
  47. I tried everything else BUT this…. 😯

    THANKS! 😎

    Posted by Eric | January 13, 2013, 8:35 pm
  48. Thanks!

    Posted by Stu | January 15, 2013, 5:04 pm
  49. One year now! No more.
    Thank you very much.
    Gary Simmons

    Posted by garym66 | January 31, 2013, 8:53 pm
  50. Fixed my father in-law’s laptop too, after some nasty malware nobbled it. Thanks very much πŸ˜€

    Posted by Keith | February 7, 2013, 3:08 pm

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