Wednesday, October 12, 2011

A Bogus Call From "Windows" Reveals Scam

Be wary of anyone claiming to be from "Windows"
A few weeks ago my friend Monique called me and reported that someone from "Windows" called her and said that her computer had been sending out private information about her and the person wanted her to download and install something.  She told the guy that she didn't really know much about the computer and asked if he could call back in half an hour when her husband would be in.

That's when she called me.  The big red flag for me was the fact that the guy said he was calling from "Windows."  I asked Monique if she was sure he said "windows" and not Microsoft.  She was sure.  So I came over and we waited for the phone to ring.  I was not disappointed.

When I got on the phone I asked the guy where he was calling from and he said England.  He had a bit of a non-British accent but I'm not sure what it was; possibly Indian, I'm not certain.  He confirmed he was calling from Windows and I asked him if he meant Microsoft and he repeated that he was calling from Windows, from the technical division. He said that a technician would help me solve the "problem" and it may cost money if the problem was really severe.

I pretended to play along to see what he was up to.  He wanted me to download a file from a website which would allow him to "inspect" the computer.  I was familiar with the program because it is a legitimate program similar to VLC used to log onto people's computers, usually used by technicians and engineers to take over a PC.  I deliberately frustrated him by pretending I just couldn't log onto the site, claiming it must be the virus that is interferring.  And he did get frustrated much to my pleasure.  He kept trying to get me to log onto a different website which was a redirector to the legitimate site.

If I had been a bit more keen I would have asked for his name, number and company name.  Instead, however, I just thanked him for the information and said I would reload my machine from scratch which would thereby destroy the virus.

In conclusion, let me tell you that this was indeed a scam which I looked up after the phonecall.  Here's more info from Microsoft's site.

http://answers.microsoft.com/en-us/windows/forum/windows_xp-security/phone-call-scam-received-call-from-a-technician/6ed2b99c-20ff-468b-a69b-aec78b93f287

I'm glad Monique called me because I have not had to deal with that scam before or since then and it was good to have that experience.

That's it for now.
Happy computing!

Big Mike


Monday, August 1, 2011

A Little Tap'll Do Ya

Recently I was asked to try to save the data on a failed hard drive.  This was a fairly new 2 terabyte Western Digital "green" drive.  I was told the drive just "up and stopped" one day and the drive letter disappeared.  I've had the opportunity to retreive data on lots of drives before, and this, I thought, would be no different than the hundreds of others I had managed to get data from.

I hooked the drive up to my test machine and hit the power button.  The machine took a long time to initialize the drives, and then gave me a failure message from the one I had hooked up.  I felt the top and bottom of the hard drive and it didn't feel warm, nor did it feel like it was spinning the platters inside.

My first thought was that it was indeed 'hooped" and beyond my level of repair.  So I called my client and told him what I had discovered.  He said he was between backups on that drive and that there was some stuff on there that was very important.  I told him there were some data recovery companies in BC and we could ship his drive over to one of them but it was not a cheap process.  He wanted to know how much and I said it was at least several hundred dollars for sure.  I told him I could do some research for him and come up with some sort of plan.

I called around and talked to a few recovery companies on the mainland, and came up with the best deal I could find and that was about $750, and if no data could be recovered, then no charge.  But I also had to send a second drive for the data to be copied to and provide a list of the most important folders on the drive so they would at least have something to search for while the drive was running in some capacity.

After working out a deal and confirming with my customer how to proceed, I was getting ready to send in the two hard drives via Purolator.  But during a quick meeting with my engineer friend, I had an idea I would try.  He said it was possible that the platters were just "stuck" because they were in the middle of a read/write when something happened.  He suggested I try holding the drive parallel to the floor and quickly spin the drive back and forth with my hand.  The idea, of course, was to make the case spin faster than the platters, thereby breaking them free.  I tried that a few time but it didn't work.

Then I had another idea.  I was thinking of times when I have had worn brushes on a car starter and had to tap tap tap on the side of the starter to make it move just enough to move past the flat spot so I could start the car.  I took a little hammer and tap tap tapped on the edge of the hard drive in the same manner.  Then I hooked the drive up again to my test machine, and VOILA!  It spun up.

I was so excited.  I allowed my test machine to boot up and I was able to read the drive.  It needed to run a CHKDSK to correct a few small errors, but after that it was able to operate normally.  I called my client and told him the good news.  He was all smiles.  I told him of my new plan to copy his data to a spare drive I had and then to run a thorough diagnostic on his drive.  He agreed.

Well, it took awhile to do all that but overall the result was good.  My customer paid me for my time and expertise.  And it was lest costly than 'Plan A,' so he was pretty happy.  Me too.

So the next time a drive doesn't spin up for an unknown reason, you have something you can try before you send or throw it away.

Happy Computing!

Big Mike

Thursday, July 14, 2011

What's Wrong With 2 AntiVirus Programs?

I just finished repairing a client's machine that had stopped being able to boot with an accompanying "blue screen of death" (BSD). Every time I tried to boot the machine it would get to the part where it was about to display the Welcome Screen, there'd be a BSD, and then the machine would reboot leading to the same result.

Although I cannot say for certain, I suspect that if my client had taken this machine to FutureShop or Staples, he might have been told his computer would need to be reloaded with Windows.  What did I do to fix it?  I hooked his hard drive up to my Test Machine and ran chkdsk.  That fixed some garbled entries of the Master File Table (MFT).  I was then able to put the drive back into the client's tower and was then able to boot.

Once it was booted up I was able to make an educated guess as to what happened and why the machine crashed in the first place.  I saw three things right away that I believe were unwitting culprits.

1. System time was off by about 15 minutes. Windows Update depends on your machine being in sync with Microsoft's servers.  Some updates just won't happen if the time it out by more than a few minutes.  Having the time go astray is often the result of a low battery on the motherboard.
2. Recent updates had glitched after a reboot.  Once I was able to fix the MFT and get the machine up and running, it finished these recent updates.
3. There were two AV programs: BitDefender and Avast.

So what's wrong with having two anti-virus programs?  When I asked my client later he said that he thought two would be better than one and that they would work together as a team.  I politely informed him that this is not the case.  In fact, the two programs will compete to try to do the same job.

Suppose one program detects a virus and quarantines it (as it should).  Later, the second program scans the same machine, and finds the virus again, but this time it's found in the quarantine folder of the first AV program.  The second program will try unsuccessfully to quarantine it but won't be able to because the file has been locked (quarantined) so as not to contaminate the machine again.

What happens after that varies.  Sometimes the machine just gets really slow.  Sometimes it crashes.

Can you see how this would be a problem?  Two anti-virus programs do not work together "as a team;" rather, they will fight to see who can do the job first.  It is my hope that after reading this article you will know better and save yourself some future frustration and cash.

Happy computing!

Big Mike

Sunday, June 26, 2011

Staples May Inadvertantly Sell Your Data

In the June 22, 2011 edition of the local paper I saw this headline:
"WATCHDOG: STAPLES RESOLD HARD DRIVES WITH PERSONAL INFO"

The article went on to talk about the federal privacy watchdog says Staples Business Depot stores failed to fully wipe personal info and data from laptop computers they resold.  Apparently this has been an on-going problem, which is not good.  After the audit Staples responded saying it was actively testing several means of fully wiping data from returned products without damaging or destroying hard drives or operating systems.

Today's blog is about how to make sure this does not happen to you or your data.

The article did not say exactly how these problems manifested themselves but I can make an educated guess.  I suspect a scenario where someone buys a laptop, uses it for a few days, and then brings it back saying it's not for them or they'd like one that's a bit better.  But in the meantime while they had it they set it up for themselves and copied or stored data, not thinking it needs to be erased before bringing it back.  Or, perhaps someone bought an external hard drive to back up their stuff and then realized it didn't have enough storage space.  So they bring it back and trade it up.

So what can you do?  Here's a simple solution.  And you don't have to be any sort of computer whiz to do this.  If you have purchased a new laptop from Staples or Futureshop or whatever, and you've used it for a few days and saved stuff to it's hard drive, what can you do to make sure someone else doesn't have to deal with your data?

1. Open the Control Panel
2. Find/Click on User Accounts
3. Click on Manage Another Account (Win7)
4. Find/Click on Create a New Account
5. Give the new account a name (such as "BigMike" or "User2")
6. Put the radio dot on "Administrator" account (rather than Standard User) and then click the "Create Account" button.
7. Do not create a password.
8. Log out of your account (for the last time).
9. Log onto the new account from the Welcome Screen.
10. Go into Control Panel, find User Accounts, and delete your old account.
11. If it asks if you want to keep the files, say NO.
12 Log back out and turn off machine.

It's ready to go back to the store now, or even to give to your neighbour or relative without fear of your data being accidentally left on there.  As long as you didn't store data in any other folder other than your own Documents/Pictures/Music folders, all your old stuff should be gone now.

The other thing you could do would be to do a Restore to Factory Default on the laptop.  This takes a long time, however, and is probably not necessary unless you've got a virus or corrupt data.

If I were the Tech Director at Staples, even though it would take extra time, I would insist all the techs learn how to restore to factory settings for laptops so there's almost no chance of any old data being found.*  That said, read how data is erased below.

Until next time,
Happy Computing!


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*NOTE: You have probably heard that even when you delete data from a hard drive it is not really "gone."  This is true but let me tell you what the means.  When you delete a file or folder from a hard drive, it normally goes to the Recycle Bin.  While in the Bin it can be restored if necessary, so you know it's not really gone permanently.  If you hold the Shift button down while deleting a file or folder, it will ask you if you want to "permanently" delete this file.  That's because when you hold the Shift key down while deleting it skips the Recycle Bin and erases the index entry on the hard drive.  In effect, the file is deleted and it would be difficult to get it back.  Difficult that is, but not impossible. 

When the index entry is erased, it's sort of like removing a section from the Table of Contents of book.  Just like a ToC in a real book, it doesn't delete the actual pages where the information is written, but it erases what page it was on, making it difficult to find again.  The file or folder can still be recovered again with not too much trouble if you know what to look for.  As soon as another file overwrites the spot where your file or folder was, it is essentially gone.  Same goes if the drive is defragged.  Your data is "gone" for all intents and purposes.

The RCMP has software that can get back data that has been deleted or defragged up to 6 times.  If you are REALLY paranoid, you can download something called the "Guttman" process which erases and overwrites the hard drive 7 - 32 times.  Very little chance of getting your data back if you run this process.  You could also defrag the drive and each time will push your old data further and further away from being resurrected.

Sunday, May 29, 2011

Buy New, or Upgrade?


Which way do you go?

This week I had a client (whom I'll call "Joe") who has a diagnostic device that requires a serial port on a computer to plug into. For a long time he had been using a Compaq laptop, circa 2004, which had, as many laptops of the day, a serial port.

Well, Joe's laptop has definitely seen better days. The battery was toast and the hard drive was just about shot, but salvageable. It could use more ram too at only 768 megs. Adequate, but not great.

At this point, Joe is asking what it costs to replace all this stuff and I do a quick check and it would normally be well over 3 or 4 hundred dollars with labour and taxes. He figures he could put that money into a new machine instead of fixing up the old one. But a new one could be $600 and up after all is said and done. Then a person would need to purchase some sort of adaptor to turn USB into a Serial port. Unfortunately, there are potential issues with these adaptors and not ALL serial port devices will work through them. There was a chance Joe could spend several hundred dollars getting a new maching, only to find out later his usb/serial device works but it sometimes is flaky or inaccurate, or slow, or stops responding.

To upgrade, a new 160 gig drive to replace the 40 gig is about 80 bucks or so. As for a new battery, I called one place and they wanted $178!!!! I was a bit shocked. I called another place and was able to get one sent to me for about $80. Pretty good deal compared to the first quote, that's for sure. To max out the ram on that laptop would be about 130 bucks and bring it up to two gigs of ram. Great for Windows XP.

Since Joe didn't have much money we decided to upgrade, but not everything; just the hard drive and battery. These are the two most critical things. The ram can wait. So we ghosted over his old drive to a new one and replaced the battery, and now it runs like it was new. Joe is happy.

If Joe is happy, I'M happy.

Sunday, May 22, 2011

Things that make ya go "hunh?!?"


Recently I worked on a machine that was giving me a false message. It was telling me on boot up that the bios needed to be updated and was asking me to insert either a cd with the xxxx.rom file or a usb drive with the same.

After a lot of time spend trying to "please the machine" by running bios updates in various ways, it became apparent that the real problem lay elsewhere. I removed all the pci cards and powered up. No change. There were four sticks of ram; I removed two of them them and powered up. Hey, it booted! Something with the ram. After trying various combinations I was able to determine which of the four was the problem.

This is kinda like your car stalling with a message on the dash saying you're out of gas. But then you get out and see you have a flat tire. You fix the tire and suddenly the low fuel light goes out.

Sometimes things aren't always what they seem when fixing pc's.

Wednesday, May 18, 2011

Custom Building a Computer


If you are a small business and you need a computer to do a particular task, it might be a good idea to consult someone (such as myself) to see what sort of parts would make a good machine for your particular needs.

For example, if you wanted to edit video, you would need a much more powerful machine with higher end parts than you would to, say, create spread sheets or type a newsletter. Or if you were a serious hardcore gamer and had a really huge budget, you would want to build a better machine than what it would take to, say, surf the web and play your favourite movie on dvd.

But you know what? You don't need to be a computer whiz with years of experience to know what you want in a new computer for your specific needs. The hard part is deciding which way to play with numbers so you get the best bang for your hard-earned buck.

Here are a few pointers you may find helpful.

1. If you are into editing pictures with Photoshop, believe it or not, you do not need a high-end video card. What you need is lots of RAM power, rather than video power. So there's no need to spend a bunch of money for a video card unless you're doing something with video files or you're a gamer.

2. If you want to build a decent gaming machine, don't cheap out on the power supply; get a really decent one. If you buy a cheap one you're just looking for trouble. Remember that clean power is what your machine really likes. The power coming into your home is not "clean" power, meaning there are constant spikes and dips and noise on the powerlines. Having a battery backup power supply (or UPS) will clean the power for you so your power supply doesn't have to. Now, I say this about gaming machines, but really, my advice is to stay away from cheap, light power supplies altogether unless it's just an emergency temporary fix.

3. Don't worry about maxing out the ram on your motherboard. Just get what you can for now and fill in the rest or upgrade later. Just because your motherboard is capable of supporting 24gigs of RAM doesn't mean you have to make it full from the start.

4. Make sure the front side bus (or FSB) matches or exceeds the speed of your RAM. RAM will typically get faster and cheaper so you can fill up later. For now, however, it would be okay to get a motherboard with 1333MHz FSB and DDR3 RAM at 1333MHz. It would also be okay if your FSB was 2000MHz and your RAM was 1333 as this would still work well and you could always upgrade the ram later. It's not so easy to upgrade the motherboard.

5. Look for the "sweet spot" when it comes to getting the best bang for your buck with your CPU. For example, you could buy an Intel Core i5 2.8GHz for $173. But right next to it is the Intel Core i5 3.1GHz for $177. It's a "no-brainer." Spend the extra 4 bucks.

6. Harddrives. Have you noticed that some brand names of hdd's are using colours to designate various designs now? For example, Western Digital sells "blue" drives, "green" drives, and "black" drives. What's the difference? Speed. The Green drives are spinning at 5400 rpm while the Black drives are spinning at 7200 rpm. Black drives are almost twice the price of Green drives at the moment. If you can afford it, go with the Black drives. If you need a "value" machine, go Green.

As I mentioned, playing with the numbers is the harder part of building a new machine. In general, I usually spend the most money on motherboard, CPU, tower and power supply. The other stuff I don't mind "cheaping out" on like the DVD burner or card reader. Personally, I like spending a bit more on a nice case rather than just a ho-hum run-of-the-mill tower that everyone else has. But that's just me. Some people don't give a dang about how their case looks, just so long as everything fits.

Hope that helps.