since yesterday i am having problem with my security centre. it keeps on saying your pc is not protected and when i click on fix it says more than one or more file require your response. i even reinstalled it but after couple of minutes i get same error. Thanks
It is possible that you're infected, in which case it makes sense to scan with your McAfee software or do an online scan with a different AV like Kaspersky, and free MBAM and SAS.
You reinstalled it, but you didn't use the MCPR tool ? Then I suggest uninstalling, using the MCPR tool according to the instructions that can be found on this forum, and then install it again from your online account.