AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the...

36
AHS Computing

Transcript of AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the...

Page 1: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

AHS Computing

Page 2: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

1. We are not going to talk about horror stories!

2. We give no guarantees! 3. Before you talk to us about your home pc,

after the seminar, try our suggestions! 4. There is no magic bullet! 5. If you are not prepared to listen to our

expert advice, leave!

Page 3: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Do you think that maybe this is a sign?

When was the last time you backed up your data???

Page 4: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

1. You treat your computer like a rental car 2. Too many garbage programs installed 3. You are running as an administrator 4. You let someone else use your computer 5. You are too cheap to buy a decent computer

Page 5: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

There are many reasons why your computer could run slow Several software programs have been

installed/uninstalled leaving behind bad files and/or confusing the software Data Corruption Security holes Hard disk drive is short on available disk space Bad Hardware

Page 6: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.
Page 7: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Hardware drives your computer

If your hardware is not capable of running the software then your computer will be slow

Page 8: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Buying that cheap computer from big box stores, might save you money… but are you getting bang for your buck?

Cheapest is not always the best!!! Components are important Think of your computer in cat years… if your

computer is 2 years old it’s really 14 years old in technology terms

Page 9: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.
Page 10: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

If your computer is more than 5 years old, it doesn’t really matter what you do, it’s going to be slow!!!

Page 11: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Loading unnecessary programs at startup will cripple your pc

Known Resource Hogs Adobe Acrobat Nero/Roxio CD Burning Software Quicktime Anything that is in your systray

Page 12: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

(blōt´wãr) (n.) jargon Software that has lots of features and requires considerable disk space and RAM.

As the cost of RAM and disk storage has decreased, there has been a growing trend among software developers to disregard the size of applications

Some people refer to this trend as creeping featuritis

If creeping featuritis is the symptom, bloatware is the disease.

Page 13: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Why install??? Yahoo Toolbar

Google Toolbar

When there is already a built-in search tool in IE7?

Page 14: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Most people install iTunes Winamp Quicktime Windows Media Player VLC

Do you need all of them???

Page 15: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

If you aren’t using a piece of software, uninstall it!

Does it need to be installed in the first place? The fewer programs on your computer Less likely conflicts will occur More hard drive space available for data Fewer security holes

Page 16: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Is your computer a zombie?

A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Page 17: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

(1) Spammer's web site (2) Spammer (3) Spamware (4) Infected computers (5) Virus or trojan (6) Mail servers (7) Users (8) Web traffic http://antivirus.about.com/od/whatisavirus/a/zombiepc.htm

Page 18: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Make sure that you run the following

Windows Firewall Windows Update Anti-Spyware Software

Page 19: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.
Page 20: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Make sure that your computer is up to date

Run Windows Updates on a regular schedule

An un-patched system can be vulnerable

Page 21: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

To ensure that your computer is virus-free, update the virus definitions and run a scan

Page 22: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Spyware can often slow down your computer, and it is also a significant security threat

We recommend downloading Lavasoft’s Ad-Aware

Page 23: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Troubleshooting 101

Page 24: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

When does your computer run slowly? ▪ At startup ▪ All the time ▪ Randomly

What are you doing when it slows down? ▪ Running a certain program ▪ Running any program ▪ Running many programs ▪ Logging in

Page 25: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

The CPU is the brain If it is running at its maximum, then instructions will often

have to wait in line

The Processor

The Memory The RAM is the short term memory If it is full, then the hard disk will be used as RAM (but this is

much slower

The Hard Disk

The Hard Drive is the long term storage

Page 26: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Open the Task Manager Select the Performance tab Minimize, then leave it

running – it will automatically create a graph of the history

CPU Meter Sidebar Gadget Task Manager

Signs of Trouble: CPU frequently at 100% RAM over 85%

Page 27: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.
Page 28: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

If you have an old pc that’s running slowly the best solution is to buy a new pc

Page 29: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Only consider upgrading your pc still fits your technology needs but is running a touch on the slow side

Otherwise, save the money and buy something better!!!

What’s the best thing to spend $$$ on? RAM Video Card

Page 30: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Helps the user locate and remove unnecessary files Temporary files Cached webpages Computer logs

Start All Programs Accessories System Tools Disk Cleanup

Page 31: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

We recommend Ccleaner - freeware system optimization, privacy and cleaning tool

It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space

Additionally it contains a fully featured registry cleaner

Page 32: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Data is not grouped together when stored Defragmenting groups relevant data together to

reduce the time needed to access it Start All Programs Accessories System Tools Disk Defragmenter

Page 33: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Navigate to System Configuration in the Control Panel, or type msconfig in the Run Box

In the Startup tab, you can edit which programs start automatically – Be Careful!!!

Page 34: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Close the Sidebar Disable Aero

▪ Personalize appearance and sounds ▪ Open classic appearance properties

for more color options ▪ Then choose a color scheme that is

not Windows Aero

Eliminate visual effects ▪ Start the Control Panel, then type

Visual Effects in the Search bar ▪ Choose “Adjust for best

performance” at the top

Page 35: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Get rid of unused software

Don’t install software from an unverified source

Keep your pc clean!!!

Page 36: AHS Computing - Home | University of Waterloo · A computer zombie is a computer attached to the Internet that has been compromised by a hacker, a computer virus, or a trojan horse.

Lowell Williamson, IT Specialist BMH 2301, x32326

[email protected]

Stephen Bennett, Co-op Assistant BMH 2326, x33010 [email protected]