We'll need to do a little "digging" here. Please answer each of the following[admittedly tedious] diagnostic questions in a correspondingly-numbered list in your very next reply - preferably
without quoting my post:
1a. When (approx. date) did you purchase the computer?
1b. Did Win7 (64-bit) come preinstalled on the computer when you bought it, did you do a clean install of Win7,
or did you upgrade from Vista to Win7?
2a. Was Microsoft Security Essentials (MSE) originally offered & installed via Windows Update or did you intentionally
choose to install it?
2b. In Windows Explorer [WinKey+E], navigate to & right-click on
• **C:\Program Files**Microsoft Security Client <=this folder
Select Properties: What is the Created date displayed on the resulting
General tab?
2c. What ANTIMALWARE CLIENT version is currently installed? To find out, open MSE & click on the downward-pointing arrow to the right of HELP then select ABOUT SECURITY ESSENTIALS.
2d. What ENGINE & DEFINITIONS versions?
- What anti-virus application was installed before you installed MSE, was your subscription still current, and did you uninstall it before you installed MSE?
4a. Has a(nother) Norton application or a McAfee application EVER been installed on the computer
since you bought it?
4b. Did a Norton free-trial or a McAfee free-trial [PICK ONE] come preinstalled on the computer
when you bought it? (Doesn't matter if you never used or Activated it.)
5a. Is KB3030377, KB3032323, KB3034344, KB3035126, KB3035132, KB3039066, KB3033889, KB3046049 and/or
KB3023562 listed in Installed Updates (not Update History)? [1]
5b. When (exact date) was KB2977629 installed according to Installed Updates(not Update History)?
5c. When (if ever) did you last run Disk Cleanup with the Windows Update Cleanup option enabled?
- *Assuming Java is installed =>*Is Java Version 8 Update 40 (or higher) or Java Version 7 Update 75 (or higher) installed? TEST HERE USING INTERNET EXPLORER
ONLY! => http://java.com/en/download/uninstallapplet.jsp [2]
- Is Adobe Flash Player v17.0.0.134 (or higher) installed? TEST HERE USING INTERNET EXPLORER
ONLY! => http://www.adobe.com/software/flash/about/
8a. When (exact date) was Windows Internet Explorer 11 installed according to
Installed Updates?
8b. Is Firefox, Chrome or any other alternate browser installed?
- Are you in the habit of using "Registry cleaners" (e.g., Registry Mechanic; System Mechanic; RegCure; RegClean Pro; Advanced SystemCare; Registry Booster; McAfee QuickClean; AVG PC TuneUp; Norton Registry Cleaner; PCTools Optimiser; SpeedUpMyPC; PC Doctor;
TuneUp Utilities; WinMaximizer; WinSweeper; Comodo System Cleaner; Advanced System Optimizer; CCleaner's
Registry Cleaner component)?
Related references may include:
- Check list for installing Microsoft Security Essentials
[http://answers.microsoft.com/en-us/protect/wiki/mse-protect\_start/microsoft-security-essentials-installation/e6e18776-9571-42e9-8fc0-66717dde0e19](http://answers.microsoft.com/en-us/protect/wiki/mse-protect_start/microsoft-security-essentials-installation/e6e18776-9571-42e9-8fc0-66717dde0e19)
- Can I install Microsoft Security Essentials [*or any other anti-virus/anti-spyware application*] to clean up my already-infected computer?
[http://answers.microsoft.com/thread/87058857-d181-4019-a723-efd9a49d9275](http://answers.microsoft.com/thread/87058857-d181-4019-a723-efd9a49d9275)
==============================================
[1] **Start | Control Panel | Pro** **grams and Features | Installed Updates** (in left-hand menu)
[2] No need to install Java if it's not *already* installed