i got a call last week. they are very good. they fixed my two computers within few hours.

....and you're just another pathetic shill for this scam!  Reputable computer repair companies do NOT cold call you!

As a reminder, this is what Microsoft says about this scam:

http://www.microsoft.com/security/online-privacy/avoid-phone-scams.aspx

Cybercriminals don't just send fraudulent email messages and set up fake websites. They might also call you on the telephone and claim to be from Microsoft. They might offer to help solve your computer problems or sell you a software license. Once they have access to your computer, they can do the following:

Trick you into installing malicious software that could capture sensitive data, such as online banking user names and passwords. They might also then charge you to remove this software.

Take control of your computer remotely and adjust settings to leave your computer vulnerable.

Request credit card information so they can bill you for phony services.

Direct you to fraudulent websites and ask you to enter credit card and other personal or financial information there.

Neither Microsoft nor our partners make unsolicited phone calls (also known as cold calls) to charge you for computer security or software fixes.

Telephone tech support scams: What you need to know

Cybercriminals often use publicly available phone directories so they might know your name and other personal information when they call you. They might even guess what operating system you're using.

Once they've gained your trust, they might ask for your user name and password or ask you to go to a website to install software that will let them access your computer to fix it. Once you do this, your computer and your personal information is vulnerable.

Do not trust unsolicited calls. Do not provide any personal information.

Here are some of the organizations that cybercriminals claim to be from:

Windows Helpdesk

Windows Service Center

Microsoft Tech Support

Microsoft Support

Windows Technical Department Support Group

Microsoft Research and Development Team (Microsoft R & D Team)

Report phone scams

Learn about how to report phone fraud in the United States. Outside of the US, contact your local authorities.

How to protect yourself from telephone tech support scams

If someone claiming to be from Microsoft tech support calls you:

Do not purchase any software or services.

Ask if there is a fee or subscription associated with the "service." If there is, hang up.

Never give control of your computer to a third party unless you can confirm that it is a legitimate representative of a computer support team with whom you are already a customer.

Take the caller's information down and immediately report it to your local authorities.

Never provide your credit card or financial information to someone claiming to be from Microsoft tech support.

What to do if you already gave information to a tech support person

If you think that you might have downloaded malware from a phone tech support scam website or allowed a cybercriminal to access your computer, take these steps:

Change your computer's password, change the password on your main email account, and change the password for any financial accounts, especially your bank and credit card.

Scan your computer with the Microsoft Safety Scanner to find out if you have malware installed on your computer.

Install Microsoft Security Essentials. (Microsoft Security Essentials is a free program. If someone calls you to install this product and then charge you for it, this is also a scam.)

Note: In Windows 8, Windows Defender replaces Microsoft Security Essentials. Windows Defender runs in the background and notifies you when you need to take specific action. However, you can use it anytime to scan for malware if your computer isn’t working properly or you clicked a suspicious link online or in an email message.

Learn more about Windows Defender

Will Microsoft ever call me?

There are some cases where Microsoft will work with your Internet service provider and call you to fix a malware-infected computer—such as during the recent cleanup effort begun in our botnet takedown actions. These calls will be made by someone with whom you can verify you already are a customer. You will never receive a legitimate call from Microsoft or our partners to charge you for computer fixes.

More information

For more information about how to recognize a phishing scam, see Avoid scams that use the Microsoft name fraudulently.

If you need help with a virus or other security problem, visit the Microsoft Virus and Security Solution Center.

To help protect against viruses and other malicious software, download Microsoft Security Essentials.

Windows 8 includes antivirus protection that’s turned on by default.

I got a call and fell for the whole scam.  Costed me $399. Ebiztech services. Her number was 1 800-210-3249.  She typed everything on my notepad.  Instead of printing it, or checking it afterwards, I didn't tell I got my charge card bill.  All that was typed was Ebiztech services 18002103249.  I'm a widow and that was a lot of money for me. She said people had gotten into my computer and she showed me different files (like I knew what the hell I was looking at)  I feel so stupid.  I will never trust another person or company again.  Meanwhile my computers (both of them) are acting so awful, slow - websites closing down, etc.  I hate this world where people are so mean to others.

I received a call from Sam Sample 850-659-6668 this is the second call I received the first one the person on the phone told me he had no return call back number and I needed to go to my computer right away so he could delete the bad sectors within my ip address really did not fall for it because I saw on the news how people were hacking into your computer and then removing access and making you pay randsom to get your files back

was stupid enough to go along for the ride, spending 75 minutes with this supposed Windows Tech Support that will tell you they are not affiliated with Microsoft. The call reps have thick Indian? accents, admitting they are calling from Southeast Asia. They inform you that your computer has sent numerous alerts and warnings to them, implying Microsoft in Washington, so they are calling to help diagnose. First, the rep has you run eventvwr to show you a long historical log of errors, warnings, and alerts, pointing out the total number is in the thousands. However, these messages are likely nothing to worry about. I foolishly installed TeamViewer remote access software from the official product website (http://www.teamviewer.com) , so hopefully, that didn't cause too much damage. After you are connected, the rep runs msinfo32 and runs the command prompt (run cmd) then uses commands like ipconfig, tasklist, and netstats to scare you into thinking you have too many malicious processes running on my computer when they are all likely normal server connections, IP address names, and windows processes. He claims that svchost.exe and lsass.exe are malicious. He tells you your IPv6 address is the wrong format when you run ipconfig. He purposely shows you this web page and tells you to read the scary bullet points 1) and 2) to make you think you have malicious processes:
http://www.liutilities.com/windows-process/svchost-exe/
After you are thoroughly scared, he tries to convince you to buy tech services for $199 from this website supposedly in Washington state and tells you to notice the Better Business Bureau's A- rating for the company:
http://ebiztechservices.com/priceplan.aspx
At the beginning of the call, I said I didn't want to buy tech services or didn't need tech support, and he claimed he wasn't selling anything, but by the end of the call, they push you to click on the Buy Now button for either $199 for 1 PC or $299 for 2PCs. The tech rep, although connected remotely to you, cannot click the button for you and urges you to push it. Fortunately, I stopped at that point.
I am hoping that the TeamViewer remote connection was merely meant as a scary demo and they didn't download or upload anything malicious to my computer.
The company will give this return phone number with a supposed Microsoft certified technician name and ID badge number, but says they don't have a website or an official company name. They are simply insistent that they are technical support for Windows, which I guess is generic and truthful enough. Given the heavy accents, I doubt they are using their real names, which are English or British names. Well, I guess Britain did occupy India.
Another point that my friend who upgraded my computer made: How would the scam artist know your phone number and/or name given I didn't register with Microsoft?