How to Remove Viruses for Free

A virus on your computer can cause all kinds of problems ranging from slow performance and random crashes to stolen passwords and corrupted files. The good news is that you do not need to spend any money on expensive software to clean your computer. There are several completely free and highly effective methods to detect and remove viruses from your PC without paying a single rupee or dollar. Here is a complete step by step guide on how to remove viruses from your computer for free.

Use Windows Defender First

The very first tool you should use is already built right into your Windows operating system and it is called Windows Defender, also known as Microsoft Defender Antivirus. Most people overlook this tool simply because it came pre-installed and they assume it is not powerful enough, but in reality Windows Defender has become one of the most capable antivirus solutions available today and it costs absolutely nothing. To run a full scan, open the Start menu and type Windows Security, click on it, then select Virus and Threat Protection from the left side menu. Click on Scan Options, choose Full Scan, and then click Scan Now. The process may take anywhere from fifteen minutes to an hour depending on how many files are on your computer. Once finished, Windows Defender will show you a list of any threats it found and give you the option to remove or quarantine them immediately.

Download Malwarebytes Free

If Windows Defender does not fully solve the problem, the next best free tool is Malwarebytes. This is one of the most trusted and widely recommended free antivirus and anti-malware programs in the world. To use it, go to malwarebytes.com on your browser and download the free version of the software. Install it by following the simple on-screen instructions, then open the program and click the blue Scan button. Malwarebytes will thoroughly scan every file and process running on your computer and display a detailed list of everything it finds. Once the scan is complete, click Quarantine to safely remove all detected threats. The free version of Malwarebytes is fully capable of detecting and removing even the most stubborn viruses, trojans, spyware, and adware that other tools sometimes miss.

Use Kaspersky Virus Removal Tool

Another excellent free option is the Kaspersky Virus Removal Tool, which is a standalone program that does not require installation and can be downloaded directly from Kaspersky's official website. This tool is especially useful because it does not conflict with any existing antivirus software already installed on your computer, making it a perfect second opinion scanner. Simply download the file, run it directly from wherever you saved it, click Start Scan, and let it do its work. Once finished it will show all detected threats and allow you to delete or disinfect them with a single click.

Boot Into Safe Mode Before Scanning

One of the most effective tricks for removing stubborn viruses that keep coming back is running your antivirus scan in Safe Mode. Some viruses are smart enough to disable antivirus tools while Windows is running normally, but they cannot protect themselves when the system starts in Safe Mode because most programs including the virus itself are prevented from loading. To enter Safe Mode on Windows 10 or 11, open the Start menu, click the Power button, hold down the Shift key on your keyboard, and click Restart at the same time. When your computer restarts, choose Troubleshoot, then Advanced Options, then Startup Settings, and finally click Restart. When the list appears, press the number 4 on your keyboard to boot into Safe Mode. Once inside Safe Mode, run your preferred antivirus scan and the results will be far more thorough and effective.

Clear Temporary Files Before Scanning

Before running any antivirus scan, it is a very good idea to clear all temporary files from your computer first. Temporary files can sometimes hide malicious code and also slow down the scanning process significantly. To do this quickly, press the Windows key and R together on your keyboard to open the Run dialog box, type the word temp and press enter, then select all files in the folder that opens and delete them. Repeat the same process by typing percent temp percent in the Run box and deleting those files as well. Finally type prefetch in the Run box, select all files, and delete those too. After clearing these files your antivirus scan will run faster and more accurately.

Check Your Browser for Malware

Many viruses and unwanted programs enter your computer through the browser and hide as extensions or add-ons that you never intentionally installed. To check this on Google Chrome, click the three dots in the top right corner, go to More Tools, then Extensions, and look through the list for anything suspicious or unfamiliar. Remove anything you do not recognize by clicking the Remove button next to it. You can also type chrome://settings/reset in the Chrome address bar and reset the browser completely to its original settings, which removes any malicious changes a virus may have made to your homepage, search engine, or startup pages.

Use AdwCleaner for Adware

If your browser is constantly showing unwanted pop-up ads, redirecting you to strange websites, or opening new tabs on its own, you likely have adware rather than a traditional virus. The best free tool for removing adware is AdwCleaner, developed by Malwarebytes and available for free download from their official website. Once downloaded, run the program, click Scan Now, and it will quickly identify all adware, unwanted programs, and browser hijackers on your system. Click Clean and Repair to remove everything it finds, and your browser should return to normal behavior immediately after a restart.

Reset Your PC as a Last Resort

If none of the above methods fully resolve the problem and your computer is still behaving strangely, the most powerful free solution is resetting Windows completely. This reinstalls the operating system while giving you the option to keep your personal files safe. To do this, open Settings, click on Update and Security, then select Recovery from the left menu. Click Get Started under the Reset this PC section and choose whether you want to keep your files or remove everything. Choosing Remove Everything will result in the cleanest and most virus-free system possible, though you will need to reinstall your programs afterward.

How to Prevent Viruses in Future

Removing a virus is only half the battle. Keeping your computer clean afterward is equally important. Always keep Windows and all your software updated since most updates contain important security patches that close vulnerabilities viruses use to enter your system. Never download software from unofficial or suspicious websites and always use trusted sources. Avoid clicking on unknown links in emails or messages even if they appear to come from someone you know. Keep Windows Defender running at all times and run a Malwarebytes scan at least once a month as a routine checkup even if everything seems fine.

Taking care of your computer's security does not have to cost money. With the right free tools and a little bit of awareness about safe browsing habits, you can keep your PC completely virus-free without ever spending anything at all.

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Top AI Tools for Your PC in 2026

Artificial intelligence has completely transformed the way people use their computers. Not long ago, artificial intelligence was considered an exclusive technology reserved for large organizations and scientific laboratories, completely out of reach for ordinary everyday users. Today in 2026, powerful AI tools are available right on your personal computer, and many of them are completely free or very affordable. Whether you are a student, a content creator, a business professional, or just someone who wants to get more done in less time, there is an AI tool designed exactly for your needs. Here is a complete guide to the top AI tools you should have on your PC in 2026.

ChatGPT by OpenAI

ChatGPT is a straightforward and beginner friendly AI tool capable of assisting users with a wide range of tasks including content writing, conducting research, generating new ideas, and finding solutions to complex problems. It is particularly good at document analysis — through the chat interface, you can upload PDFs, spreadsheets, screenshots, and other files, and ask it to summarize insights or highlight trends in data. ChatGPT also has a desktop application for Windows, meaning you no longer need to open a browser every time you want to use it. As of 2026, ChatGPT is considered the best overall AI tool for most people, being the most versatile with the best memory features, and working well for everything from quick questions to image generation and deep research. A free account is available with some usage limits, while paid plans start at a very affordable monthly price.

Claude by Anthropic

Claude is known to engage more carefully with the actual nuance of what you are asking. Claude runs directly in your browser and also has a desktop application, making it extremely accessible. Claude is particularly recommended for writing code and automating processes, and its long context window makes it ideal for working with very large documents or lengthy projects that other tools struggle to handle.

Google Gemini

Gemini is the AI assistant from Google and one of the most popular AI tools because of its multiple uses, including helping with research, writing, data analysis, and multimedia creation. Gemini can handle large amounts of text at once, so if you are uploading long papers or dense documents, you can ask detailed questions about them and the tool can provide accurate responses. Gemini's advanced Deep Research feature is capable of dividing heavily detailed research topics into manageable sections and presenting the findings in the form of well structured and engaging reports that users can easily interact with. Since Gemini is deeply integrated with Google's ecosystem including Google Docs, Gmail, and Google Drive, it is an especially powerful choice for users who already rely on Google services daily.

Microsoft Copilot

Windows 11 includes Microsoft Copilot, a built-in AI assistant accessible from the taskbar or via the Win and C shortcut. It can summarize content, generate images, change system settings, and answer questions without ever leaving your desktop. This makes it one of the most convenient AI tools available since it requires no installation and works seamlessly across your entire Windows experience. Copilot works across your PC context including files, apps, and settings, so you can draft, plan, or recap without switching tools. For everyday Windows users who want a quick and integrated AI assistant, Copilot is the most effortless option available.

Grammarly

Many people think of Grammarly as nothing more than a basic spelling correction tool, but its capabilities in 2026 go far beyond simple grammar fixes. When you run your writing through Grammarly, it analyzes your tone, suggests ways to make your sentences cleaner and more concise, and even offers full paragraph rewrites with a single click. The free plan includes 100 AI prompts per month, while the premium version works directly inside Microsoft Word, Google Docs, and your browser as you type. It is an essential tool for anyone who writes regularly whether for work, school, or blogging.

Runway ML

Runway ML is one of the leading tools for video and visual creation on PC, helping content creators generate, edit, and enhance video content using advanced AI models. It allows you to remove backgrounds from videos automatically, generate entirely new video scenes from text descriptions, and apply professional level editing effects without any traditional video editing experience. For YouTubers, bloggers, and social media creators, Runway ML has become one of the most valuable AI tools available in 2026.

ElevenLabs

ElevenLabs is a powerful voice generation platform capable of producing remarkably natural sounding speech from plain text input, supporting dozens of languages and accents with impressive accuracy. Content creators use it to generate voiceovers for videos without recording their own voice, while businesses use it to build automated customer service voice agents. A generous free tier is available, making it accessible for individual creators and small projects without any upfront cost.

Notion AI

Notion AI comes integrated inside the widely used Notion productivity platform, offering users the ability to draft notes, condense lengthy documents into shorter summaries, pull out key action points from meeting records, and transform scattered thoughts into well organized written content. For daily productivity, Notion AI is among the strongest choices for desktop users who want AI assistance integrated directly into their workspace and document management system. It is especially powerful for teams and individuals who already organize their work, projects, and notes inside Notion.

Perplexity AI

Perplexity is the best AI for research because it cites its sources, making it far more reliable than tools that generate answers without showing where the information came from. Every answer it provides includes direct links to the original sources, allowing you to verify facts and explore topics more deeply. For students, journalists, and anyone doing serious research online, Perplexity has become an indispensable tool that combines the power of AI with the trustworthiness of cited references.

Stable Diffusion

Stable Diffusion WebUI runs locally on your own computer using your graphics card, making it one of the most powerful free AI image generation tools available today. Unlike cloud based image generators that require an internet connection and often charge per image, Stable Diffusion lets you generate unlimited images completely free once it is properly set up. It gives users full control over the style, content, and quality of generated images, making it the top choice for graphic designers, artists, and creative professionals who want maximum freedom without ongoing costs.

Final Thoughts

The AI software landscape on PC in 2026 has matured into something truly remarkable, offering tools that give everyday users real control, speed, and creative freedom that was simply not possible before. Whether you are a marketer, designer, developer, or student, there is now an AI application tailored specifically for your needs and budget. The smartest approach is to start with one or two tools that match your most common daily tasks, get comfortable using them, and gradually explore others as your confidence and needs grow. The future of personal computing is already here, and these AI tools are the clearest proof of that.

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Power Supply in a PC — Everything You Need to Know

 When people talk about building or upgrading a computer, they usually focus on the processor, graphics card, or RAM. The power supply unit is almost always the last thing anyone thinks about, yet it is arguably one of the most important components inside any computer. Without a proper and reliable power supply, even the most expensive and powerful hardware inside your PC cannot function correctly. Understanding what a power supply does, how it works, and what to look for when choosing one can save you from serious problems down the road.

What is a Power Supply Unit

A power supply unit, commonly known as PSU, is a hardware component that converts the alternating current electricity coming from your wall outlet into the direct current electricity that your computer components actually need to operate. Your home electricity runs at a much higher voltage than what computer parts require, so the power supply steps that voltage down and distributes it safely to every component inside your machine including the motherboard, processor, graphics card, hard drives, cooling fans, and everything else connected to the system.

How Does a Power Supply Work

The power supply sits inside the computer case and connects to the wall outlet through a standard power cable. When you turn on your computer, the power supply receives the incoming alternating current and passes it through an internal transformer that converts it into multiple direct current voltage levels, most commonly 3.3 volts, 5 volts, and 12 volts. Each voltage level is used by different components depending on their requirements. The 12 volt rail is the most important one today as it powers the processor and graphics card, which are the most power hungry components in any modern PC. The power supply then delivers this converted electricity to each component through a series of cables and connectors.

Power Supply Wattage

One of the most important specifications of any power supply is its wattage rating, which tells you the maximum amount of power it can deliver to your system at any given time. Common wattage options range from 450 watts for basic office computers all the way up to 1000 watts or more for high end gaming and workstation builds. Choosing the right wattage is critical because if your power supply cannot deliver enough power for all your components running simultaneously, your computer will become unstable, randomly shut down, or in worst cases damage your hardware. As a general rule, it is always recommended to choose a power supply with about 20 to 30 percent more wattage than your system actually needs, giving yourself a comfortable headroom for safety and future upgrades.

Power Supply Efficiency Ratings

Power supplies come with efficiency ratings that tell you how well they convert incoming electricity into usable power for your components. These ratings follow a standard called the 80 Plus certification system, which includes different tiers such as 80 Plus White, Bronze, Silver, Gold, Platinum, and Titanium. A higher efficiency rating means the power supply wastes less electricity as heat during the conversion process, resulting in lower electricity bills, less heat generated inside your case, and generally quieter operation since the fan does not need to work as hard. For most users a Gold rated power supply offers the best balance between cost and efficiency, while Platinum and Titanium rated units are preferred by enthusiasts who want maximum efficiency regardless of the higher price.

Modular vs Non-Modular Power Supplies

Power supplies come in three cable management styles. A non-modular power supply has all its cables permanently attached, meaning every cable comes out of the unit whether you need it or not, which can make cable management inside the case messy and difficult. A fully modular power supply allows you to attach only the cables you actually need, keeping the inside of your case clean and improving airflow significantly. A semi-modular power supply offers a middle ground, with essential cables permanently attached and optional ones detachable. For most builders, a semi-modular or fully modular unit is strongly recommended for a cleaner and better organized build.

Power Supply Form Factors

Power supplies come in different physical sizes called form factors to fit different types of computer cases. The most common form factor is ATX, which fits standard full tower, mid tower, and many mini tower cases. Smaller form factors like SFX and TFX are designed for compact and slim cases where a full sized ATX unit would not fit. When buying a power supply, always check that its form factor matches your computer case before purchasing.

Signs of a Failing Power Supply

A failing or low quality power supply can cause all kinds of mysterious problems that are often mistakenly blamed on other components. Common signs include random computer shutdowns especially under heavy load, system instability and unexpected restarts, failure to turn on at all, unusual buzzing or whining noises coming from inside the case, and components not receiving enough power to perform properly. If you notice any of these symptoms, testing or replacing the power supply should be one of the first steps before spending money on other components.

Tips for Choosing the Right Power Supply

Always buy from a reputable and well known brand since a cheap low quality power supply can damage every other component in your system if it fails. Calculate your system's total power requirement using an online PSU calculator before making a purchase. Look for at least an 80 Plus Gold efficiency rating for everyday use. Choose a modular or semi-modular design for better cable management. Make sure the unit comes with a warranty of at least five years, as good quality power supplies typically carry warranties of five to ten years as a sign of their build quality and reliability.

The power supply is truly the heart of your computer in many ways, pumping stable and clean electricity to every single component that keeps your system alive and running. Investing in a good quality power supply is never money wasted, and skimping on this one component to save a few dollars is one of the most common and costly mistakes any PC builder can make.

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