I have managed to repair the PC with the "Fix It" to the point where it now has & will download updates! However an issue still remains that I hope you have another "Fix It" for! If I go to the Action Centre. (Control Panel - System Security - Action Centre ) Windows Security is giving me a Red Flag! If I click on the "Turn on now" I get a "Windows Security Centre Service Can't Be Started" Any Thoughts!!

Hi, First, let's disable all Security Software and Firewall to check the result. If the issue persists, let's start the service manually. Check Security Center service ---------------------------------------- 1. Click Start, type Services.msc in Start Search bar, and then press Enter. 2. In the right pane, double-click Security Center. 3. In the Startup type list, click Automatic, click Apply, click Start, and then click OK. 4. Restart the computer. If any error message is received, please let me know what exactly it is. In addition, please also refer to the following post to scan the malware. http://social.answers.microsoft.com/Forums/en-US/vistasecurity/thread/ba80504b-61f1-4d71-960f-b561798b7b42 Hope it helps. Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks for the reply. I installed Uniblue Malware and it picked out several malware issues. I typed in Services.msc in the Start Search bar & it took me to a pane with "services". When I clicked on the Services Icon it took me to another Services page. I scrolled down & I can find "Security Accounts Manager" but no "Security Centre"???????? Advice???? Regards Fuzzybear

Thanks for the effort Niki. The OS is Win 7 home premium. I tried the CMD & paste but unfortunately it was a no go. There was a whole lot of jargon about unrecognised commands & open SCmanager Failed 5: Rgds Fuzzy

Hi Niki. Sorry to say even with Admin Privileges it still does not fix the issue. I also forgot to mention my pc is set up as 64bit. Sorry! Regards Fuzzybear.

I did this but nothing happened, i still can't find the security centre service in services. I have win7 homepremium 32bit

There is one kb article 2519899 published for this issue, http://support.microsoft.com/kb/2519899 , hope it helps.

hi I Have the same problem with my security center and also my windows defender it cant turn on too and it just flash on my screen for a second .2 days ago i was infected with trojan but my anti virus detected it and removed it.I use kaspersky version 11.0.1.400 and malwarebyte version 1.50.1.1100. but now whenIi scan they report nothing and everything seems fine. I did all the above to fix my problem but nothings happend and still security center goes off after a few second .My os is w7 home 64 bit. I run SFC scan too but it shoes nothing. plssss help me I really don't know what to do and action control center keeps alert me.

I have the same problem bro. :(

What is this? Please can you explain in simple words how do I turn on windows security centre service?

i want you to learn me how can i enable my security service center on windows 7 64 bit

Hi, Check Security Center service ---------------------------------------- 1. Click Start, type Services.msc in Start Search bar, and then press Enter. 2. In the right pane, double-click Security Center. 3. In the Startup type list, click Automatic, click Apply, click Start, and then click OK. L.S

Hello there, I have the same problem, though I'm running'32-bit OS Windows Vista Home Basic', are you able to help me too? ^.^

Thank you so much for this solution @Niki Han. I've been reading/researching to solve this problem for the past 4 hours. Carefully read tens of websites. (am a unix sys admin but don't know much about Windows) Your solution fixed it. I wrote a whole blog about it: http://xahlee.org/mswin/Microsoft_Windows_update_fail_KB2691905.html do you mind if i mirror your registry file? Also, if you have a blog/site/homepage i'd be more than happy to link to. also, am wondering if you wouldn't mind explain a bit about what's the registry key that causes the Windows Security Centre Service not showing up in the Services panel. Thanks a lot! Xah Lee ( xah@xahlee.org )

Hi - I used the simple step by step instructions below to fix the problem quickly: Windows Security Centre can't start I hope this helps the less techy to fix it themselves. viva la information