টাস্কবারে ঘড়ির পাশে যদি আপনার নাম

মনে করুন আপনার পিসিতে এখন ১:২২ AM বাজে। আমরা সময়ের পাশে আপনার নাম বসাব, যেমন ১:২২ সুমন । প্রথমে Start বাটনে ক্লিক করে Control panel ওপেন করব। ওপেন করার পর এরকম দেখতে পাবেন, এখানে View by > Category করা আছে, সেখানে Large icons করে দিন। তার পর Region and Language -এ ক্লিক করুন। এখানে Formats থেকে additional settings… – এ ক্লিক করুন। একটি ডায়ালক বক্স আসলে সেখানে Time নির্বাচণ করে AM Symbol & PM Symbol -এ যথারীতি AM & PM থাকবে তার পরিবর্তে আপনার নাম লিখে দিন। এখন OK করে বেড়িয়ে আসুন। লক্ষ করুন সময়ের পাশে আপনার নাম, এশে গেছে । ঐখানে AM & PM এর স্থলে দুইটি নাম ব্যবহার করতে পারেন, তাতে দুইটি নামই পর্যায়ক্রমে দেখাবে।

Set Windows welcome note

এক্ষণ থেকে আপনি পারবেন উইন্ডোজ এর Welcome Screen এ নিজস্ব মেসেজ দিতে । নীচের পদ্ধতিটি অনুসরণ করুন আর যুক্ত করুন আপনার যেকোন মেসেজ । *. ১। Start>Run>Regedit টাইপ করে এন্টার চাপুন। *. ২।এবার HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > Winlogon এ ক্লিক করুন। *. ৩।এবার ডান দিক থেকে LegalNoticeCaption এ ডাবল ক্লিক করুন। মেসেজ এর Caption যা হবে তা টাইপ করুন। *. ৪। এবার ডান দিক থেকে LegalNoticeText এ ডাবল ক্লিক করুন। আপনি কি মেসেজ দিতে চান তা এর মধ্যে টাইপ করুন। এবার কম্পিউটার রিবুট করুন আর ফলাফল দেখুন । রিমুভ করতে হলেঃ আপনি যেখানে LegalNoticeCaption এবং LegalNoticeText লিখেছেন সেখানের textগুলো মুছে দিয়ে রির্স্টাট করুন।

Increase virtual memory of yor PC

চলুন শুরু করা যাক প্রথমে My computer> Right Click>Properties এ Click করুন। ↓ এবার Advanced > Setting (1st) এ Click করুন। ↓ Advanced এ Click করুন ↓ Change এ Click করুন virtual Memory এর Atomatically managepaging file size for all drives এর টিক চিহ্নটা তুলে দিন ↓ এবার custom size নির্বাচন করুন এবং Custom নির্বাচন করে initial size আপনার Ram এর দ্বিগুন আর Maximum size আপনার Ram এর চারগুন দিয়ে Set Button এ Click করুন। সবগুলোতে ok দিয়ে বের হয়ে আসুন। ব্যস কাজ হয়ে গেল। Computer Restart চাবে, Restart দিন। এবার দেখুন আপনার পিসির গতি অনেকটা বৃদ্ধি পেয়েছে।

Break DVD copy protection

When you buy an original movie DVD, you’re entitled to watch it anywhere you like, isn’t it? But unfortunately due to copy protection you can’t watch it on say, your tablet or smartphone, and might even have problems in playing it on some region locked players and optical disc drives. While the intentions of manufacturers are noble, that is to stop piracy, it often becomes troublesome for people to watch the movie they bought where and when they want. That’s why we’re going to tell you 2 easy ways to break copy protection on a DVD, for free! These simple solutions will let you make backups of copy protected discs so that they can be stored safely or watched later.

Break Copy Protection on discs for free:
Solution 1 – Using DVD43

Solution 2 – Using VLC Media Player

While this isn’t technically a way to break copy protection, it lets you copy any movie, be it on a VCD, DVD or Blu-Ray disc and store it on your hard drive, free of any restrictions and with good quality. Insert the disc you want to make a copy of, open VLC Media Player, go to the View menu and check Advanced Controls. You should see a red dot button next to the usual controls. When you click on it and let the movie run, a copied video file is generated in the Videos folder of My Documents. The only downside is that you have to actually keep the movie on and running for it to record, and if you skip forward the skipped part won’t be recorded. It’s basically like a screen grab feature.


Another way to rip copy protected discs, albeit at lower quality with VLC Media Player is by doing the following:

1.Insert disc and open VLC Media Player. 2.Click Media>Convert/Save.
3. Select DVD as disc type and check “No Menus”, click Convert/Save.
4. Set destination and type file extension of choice (.mov or .mp4 etc).
5. Select H.264+AAC profile and click Start.

After you’ve followed the above steps, the ripping should start. Note that it might take a while. Once it’s done you will have a copy of the movie you wanted!

Viruses, worms and Trojan

What Is a Virus?

A computer virus attaches itself to a program or file enabling it to spread from one computer to another, leaving infections as it travels. Like a human virus, a computer virus can range in severity: some may cause only mildly annoying effects while others can damage your hardware, software or files. Almost all viruses are attached to an executable file, which means the virus may exist on your computer but it actually cannot infect your computer unless you run or open the malicious program. It is important to note that a virus cannot be spread without a human action, (such as running an infected program) to keep it going. Because a virus is spread by human action people will unknowingly continue the spread of a computer virus by sharing infecting files or sending emails with viruses as attachments in the email.

Anatomy of a Cyber-attack

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What Is a Worm?

A worm is similar to a virus by design and is considered to be a sub-class of a virus. Worms spread from computer to computer, but unlike a virus, it has the capability to travel without any human action. A worm takes advantage of file or information transport features on your system, which is what allows it to travel unaided.
The biggest danger with a worm is its capability to replicate itself on your system, so rather than your computer sending out a single worm, it could send out hundreds or thousands of copies of itself, creating a huge devastating effect. One example would be for a worm to send a copy of itself to everyone listed in your e-mail address book. Then, the worm replicates and sends itself out to everyone listed in each of the receiver's address book, and the manifest continues on down the line.
Due to the copying nature of a worm and its capability to travel across networks the end result in most cases is that the worm consumes too much system memory (or network bandwidth), causing Web servers, network servers and individual computers to stop responding. In recent worm attacks such as the much-talked-about Blaster Worm, the worm has been designed to tunnel into your system and allow malicious users to control your computer remotely.

What Is a Trojan horse?

A Trojan Horse is full of as much trickery as the mythological Trojan Horse it was named after. The Trojan Horse, at first glance will appear to be useful software but will actually do damage once installed or run on your computer.  Those on the receiving end of a Trojan Horse are usually tricked into opening them because they appear to be receiving legitimate software or files from a legitimate source.  When a Trojan is activated on your computer, the results can vary. Some Trojans are designed to be more annoying than malicious (like changing your desktop, adding silly active desktop icons) or they can cause serious damage by deleting files and destroying information on your system. Trojans are also known to create a backdoor on your computer that gives malicious users access to your system, possibly allowing confidential or personal information to be compromised. Unlike viruses and worms, Trojans do not reproduce by infecting other files nor do they self-replicate.

What Are Blended Threats?

Added into the mix, we also have what is called a blended threat. A blended threat is a more sophisticated attack that bundles some of the worst aspects of viruses, worms, Trojan horses and malicious code into one single threat. Blended threats can use server and Internet vulnerabilities to initiate, then transmit and also spread an attack. Characteristics of blended threats are that they cause harm to the infected system or network, they propagates using multiple methods, the attack can come from multiple points, and blended threats also exploit vulnerabilities.
To be considered a blended thread, the attack would normally serve to transport multiple attacks in one payload. For example it wouldn't just launch a DoS attack — it would also, for example, install a backdoor and maybe even damage a local system in one shot. Additionally, blended threats are designed to use multiple modes of transport. So, while a worm may travel and spread through e-mail, a single blended threat could use multiple routes including e-mail, IRC and file-sharing sharing networks.
Lastly, rather than a specific attack on predetermined .exe files, a blended thread could do multiple malicious acts, like modify your exe files, HTML files and registry keys at the same time — basically it can cause damage within several areas of your network at one time.
Blended threats are considered to be the worst risk to security since the inception of viruses, as most blended threats also require no human intervention to propagate.

Tips to Combat Viruses, Worms and Trojan Horses on Your Computer

Keep The Operating System Updated

The first step in protecting your computer from any malicious there is to ensure that your operating system (OS) is up-to-date. This is essential if you are running a Microsoft Windows OS. Secondly, you need to have anti-virus software installed on your system and ensure you download updates frequently to ensure your software has the latest fixes for new viruses, worms, and Trojan horses. Additionally, you want to make sure your anti-virus program has the capability to scan e-mail and files as they are downloaded from the Internet, and you also need to run full disk scans periodically. This will help prevent malicious programs from even reaching your computer.

Use a Firewall

You should also install a firewall. A firewall is a system that prevents unauthorized use and access to your computer. A firewall can be either hardware or software. Hardware firewalls provide a strong degree of protection from most forms of attack coming from the outside world and can be purchased as a stand-alone product or in broadband routers. Unfortunately, when battling viruses, worms and Trojans, a hardware firewall may be less effective than a software firewall, as it could possibly ignore embedded worms in out going e-mails and see this as regular network traffic.
For individual home users, the most popular firewall choice is a software firewall.  A good software firewall will protect your computer from outside attempts to control or gain access your computer, and usually provides additional protection against the most common Trojan programs or e-mail worms. The downside to software firewalls is that they will only protect the computer they are installed on, not a network.
It is important to remember that on its own a firewall is not going to rid you of your computer virus problems, but when used in conjunction with regular operating system updates and a good anti-virus scanning software, it will add some extra security and protection for your computer or network.