We'll still need to "dig a little deeper" 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 Dell computer?
1b. Has Windows 10 ever been installed?
1c. Have you ever done a Repair Install and/or a clean install of Windows 7 since you bought the computer?
1d. Have you replaced the hard-drive since you bought the brand-new Dell computer?
- What is the full name of your installed anti-virus application or security suite and when (approx. date) does your current subscription expire? What anti-spyware applications (other than Defender) are installed? What third-party firewall (if any)?
- Has a(nother) Norton application or a McAfee application EVER been installed on the computer since you bought it?
- Chances are (99.99%) the Dell computer came with a McAfee free-trial preinstalled. McAfee (and Norton) applications are notorious for not uninstalling (or upgrading) cleanly. The "leftovers" may be your #1 troublemaker here.
4a. Your list of Installed Updates says that Internet Explorer 11 [sic] was installed on 10 June 2016, is that correct?
4b. Were you running Internet Explorer 8 (IE8), IE9 or IE10 before you installed IE11?
5a. When (exact date, preferably) did you disable Windows Update (automatic updating)?
5b. What are the KB numbers of the last four (4) failed updates according to your Update History (this time) and what error number(s) is associated with each failed update? [1]
- *Assuming Java is installed =>*Is Java Version 8 Update 101 (or higher) installed? TEST HERE USING INTERNET EXPLORER ONLY! => http://java.com/en/download/uninstallapplet.jsp [2]
- Java Update: Patch it or pitch it
http://krebsonsecurity.com/2014/07/java-update-patch-it-or-pitch-it/
- Is it time to disable/uninstall Java?
http://securitygarden.blogspot.com/2013/01/java-zero-day-again-time-to.html
7. Can you successfully upgrade to Flash Player version 22.0.0.210 (or higher) by opening Internet Explorer ONLY to this page? => http://www.adobe.com/go/getflash
- BEWARE any pre-checked options to "drive-by" install unwanted, third-party software (e.g., Google Toolbar; McAfee Security Scan Plus)!
- Is Firefox version 47.0.1 (or higher) and/or Google Chrome version 52.0.2743.82 (or higher) 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; Total System Care; Glary Utilities; Registry Booster; McAfee QuickClean; AVG Quick Clean; AVG PC TuneUp; Norton Registry Cleaner; Norton PC Tuneup; PCTools Optimiser; SpeedUpMyPC; FixMyPC; PC Doctor; TuneUp Utilities; WinMaximizer; WinSweeper; Comodo System Cleaner; Advanced System Optimizer; CCleaner Registry Cleaner component)?
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[1] Start | Control Panel | Windows Update | View update history (in left-hand menu)
[2] No need to install Java if it's not already installed!