The last site you visited has infected your mac -- scam?

I am having this problem on my computer, only it is a Windows computer, the webpage has the Microsoft logo and everything, and it is opening about every half hour. Does anyone recognize this? If so, please message me
<Email Edited by Host>

When I scanned as an Administrator, EVERYTHING in the Documents and Settings folder couldn't be opened by the scan, and also a bunch of things in the Users folder (C:\Users) could not be opened either... neither could a bunch of programs in the Windows folder (C:\Windows)... result was no threats. Should I be worried about those programs the Scan done AS AN ADMINISTRATOR could not open?

I'm doing another scan as an Administrator, this time being an In-Depth Scan instead of a Smart Scan. I'm hoping now it will be able to access at least some of those files that previously failed to be open.

There have been also a number of random sites that have opened on their own, like the Facebook sign-up page and random sites that are in that language that has that horseshoe-looking letter. This is on Windows, but this is the only page on the web that I could find that talks about a topic similar to what I am having problems with. It has the exact same text, except that it has the Microsoft logo without a Copyright or Trademark symbol, and the site is not even microsoft.com.

Both of these will help us & you...

What all 3rd party extentions are you running?

EtreCheck is a simple little app to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac.

http://www.etresoft.com/etrecheck

https://www.malwarebytes.com/mac/

only it is a Windows computer

While someone well versed in Windows malware issues may happen by, you're not likely to get much help on a site dedicated to users of the Mac OS. Not out of malice, just not many users here with the knowledge to help.

You'd be much better off visiting sites frequented by other Windows users and ask the question there. I've also asked the hosts to remove your email address. This is an open forum where anyone can pick up such things whether they're a member or not. A very good way for spammers or worse to pick up a live address.

Hi, Ethan, you did the correct thing by rejecting that offer. It was a scam. See some threads regarding malware.

There are at least two schools of thought expressed by experienced users here in this Apple community regarding malware and popups.

One school primarily uses free application(s); the second school requires no additional software and just some simple steps on your part.

Read these (of many threads) discussions.

Yosemite OS X & MacKeeper I can't unistall

Got a malware on OS X Yosemite, how do I get rid of it?

"Ransomware" web pages

Pop up problems in Safari on OS X Yosemite!

See these Apple notes:

Remove unwanted adware that displays pop-up ads and graphics on your Mac - Apple Support

Safari 8 (Yosemite): Security pane of Safari preferences

OS X Yosemite: Protect your Mac from malware

ERob92 wrote:

Thank you! But do you think my Mac was infected by a virus?

Ethan

Here is what you may have, per Apple:

Malware is malicious software that includes viruses, worms, trojan horses, and other programs that can harm your Mac or your privacy.

Malware can unintentionally be installed when you open attachments in email messages and download items from websites.

Some malware is simply annoying. More often, its intent is to control your Mac to collect personal and financial information, host illegal content, send spam, or harm other computers on the network. Avoid opening or downloading items from email messages and websites unless you are certain that they come from a legitimate, trusted source.

If you’re uncertain about the source, delete the item. You can always get it again later, after you make sure it isn’t malware.

Look at the links first from Apple (the last set in the earlier reply), and see if they help you:

Remove unwanted adware that displays pop-up ads and graphics on your Mac - Apple Support

Safari 8 (Yosemite): Security pane of Safari preferences

OS X Yosemite: Protect your Mac from malware

See linc davis' reply here in this thread below regarding need for antivirus software down the road

Note his first words...

Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.

Is OS X Yosemite 10.10 is safe without anti virus

A timely article to read.

http://www.macissues.com/2015/03/24/how-to-overcome-safari-hijacked-by-a-javascr ipt-warning/

No.

It's opening in a Google Chrome window, BTW, and I need answers fast because, well... the computer is... my dad's...

Also, I have done two scans using the ESET Smart Security program and one scan as an Administrator, and so far, it has not detected ANYTHING wrong...