Managed IT Services

6 Signs of A Computer Virus You Shouldn’t Ignore

12 July 2022

With remote working on the rise and the work-from-home culture here to stay, an increasing number of people are using their work laptops for personal use. This makes your computer vulnerable to digital threats.

Certain viruses can lurk silently in the background, avoiding detection. Before you know it, they can compromise confidential business data and disrupt your operations. Recognising the early signs of computer virus is crucial to protecting your device and sensitive information. 

There are many types of computer viruses, each capable of causing significant harm to your workplace systems. These viruses can enter your device through phishing emails, malicious downloads, unprotected channels, or infected USB drives.

It’s essential to learn how to prevent viruses by taking proactive measures to reduce the risk of a cyber attack and keep your business safe.

Cyber criminals are constantly developing new types of computer viruses that target workplace systems to breach sensitive data. But our experts at Redpalm can help. We offer tailored cyber security solutions to protect businesses from such evolving digital threats.

In this article, we’ll explore the key signs of computer virus that indicate your computer has been compromised and guide you through how to protect your office computer from these malware attacks.

Let’s get started!

Signs that Your Computer Has a Virus

If you suspect that your system is compromised, look out for these common signs of a computer virus to take immediate action before the damage escalates.

1. Pop-Up Ads

If your computer shows frequent and odd pop-ups while you’re browsing or simply logging in, this can be a sign of computer virus. These pop-ups will tell you to visit other websites and force you to download software programs, which might be malware in disguise.

In worst-case scenarios, you might accidentally install spyware that takes over your browser. It can then steal your company’s or your personal information, including passwords, without your knowledge.

2. Slow Performance

If your files and applications take an oddly long time to load, your computer might have a virus or malware in its operating system. Viruses tend to work silently in the background but take up a large percentage of your computer’s processing power.

Any noticeable slowdowns in your computer, such as delays in launching programs or malfunctioning applications, could be a sign of a computer virus.

3. Unknown Applications on Your Computer

If there are some random applications or programs on your computer that you haven’t installed, this might have been the work of a virus. However, this is just a tiny part of a massive problem. 

These applications might launch without you taking any action and cause crashes or other issues on your computer, leaving you helpless. Therefore, you should turn these programs off and delete them as soon as possible to avoid further damage to your system.

4. Odd Activity on Your Email Account

If the email outbox in your computer contains messages that you didn’t send or if you find random posts that you didn’t make on your social media account, your PC might be facing malware attacks.

In these cases, you’ll need to warn the people you’ve sent these messages to and tell them to avoid clicking on any of the links the hacker might have sent. Immediately reset your passwords after you’ve gotten rid of the virus to ensure your account’s security.

You should also be cautious about receiving any phishing emails from your colleagues to avoid getting viruses on your computer.

5. Changes on Your Homepage

Things like your homepage randomly changing to another website or a new toolbar appearing out of nowhere are signs of possible cyber security threats from viruses. This usually happens when you accidentally click on suspicious links or advertisements. 

You may have accidentally downloaded some unwanted software onto your device that might be malicious and could compromise your data. It’s vital to take immediate action for these issues, as they could lead to a bigger malware problem.

6. Unexplained System Crashes

If your computer frequently crashes or restarts on its own without any apparent reason, your system files have probably been corrupted. Malicious software is typically the main cause of these corrupt files. They overload your resources and cause your system to become unstable.

To tackle this issue, you need to run a full system scan to identify and remove any malware from your computer. Ignoring these signs can lead to further system instability and potential data loss, so address them as soon as possible to prevent long-term damage.

How to Check for and Get Rid of Viruses on Your Workplace Computer

If you’ve noticed any signs that indicate your computer has virus issues, it’s essential to scan for viruses to get rid of them. To do this, you’ll need to go to the ‘security program’ in your Windows 10 or 11 and perform a scan on your computer. Go to the Virus & threat protection tab and perform a full scan of your windows. If any viruses are discovered by the scan, the system will automatically remove them.

Alternatively, you can use third-party antivirus software or take advantage of Redpalm’s expert cybersecurity services to get rid of any viruses on your computer. 

After your computer is virus-free, we recommend keeping Windows’ real-time protection enabled on your computer to help prevent future cyber attacks.

Avoid Viruses and Other Malware Problems with Redpalm’s Robust IT Solutions

Viruses and malware on your employees’ computers can cause data breaches and other IT issues that can hinder both regular and major company operations. 

Overall, they can affect the overall growth of your business, leading to unimaginable losses. You’ll need a cyber security service that can not only help with malware protection but also with any issues that impact your business continuity

The IT experts at Redpalm are always ready to help with any current or future issues that impact your business. We’re a managed service provider (MSP) that equips your business with advanced IT infrastructure to swiftly identify and eliminate these viruses at the core.

Our wide range of services includes IT audits and health checks, technology procurement, vulnerability assessments, endpoint management, and more.

To learn more about our managed IT services, click here or contact us to schedule an appointment today.

Latest From The Blogs

Cyber Security

Is Your Business Ready for the End of Windows 10 Support?

In this blog, we’ll explain what the end of Windows 10 support means for businesses, covering the risks, technology challenges, and how your business can stay secure with the right support.

Read More
it audit and cyber insurance, 2 technicians finding cyber security gaps in encrypted data on a computer
Cyber Security

Can IT Health Checks Lower Your Cyber Insurance Premium?

In this blog, we’ll explain how IT audits reduce cyber insurance premiums and provide you with a cyber insurance readiness checklist. You’ll also find practical steps to prepare your IT systems and documentation for renewal with support from Redpalm.

Read More
jaguar land rover cyberattack, hackers planning in front of multiple screens with the world map on them
Cyber Security

4 Lessons SMEs Can Learn from the Recent Jaguar Land Rover Cyberattack

In August 2025, Jaguar Land Rover suffered a cyberattack that halted production and disrupted supply chains. The incident highlights the operational and financial risks of IT outages, the importance of a clear incident response, and the vulnerability of all businesses. SMEs can learn key lessons to strengthen continuity and cyber security.

Read More
Cyber Security, Hybrid IT

How to Provide Endpoint Security for Remote Teams Without Slowing Productivity

Securing remote workforces requires balancing protection and productivity. Core measures include endpoint detection and response, patching, VPNs, monitoring, recovery, and staff training to reduce risks without slowing workflows. Modern endpoint management tools and zero-trust approaches help small and large businesses stay resilient, compliant, and efficient.

Read More
chrome security update, cropped shot of a person using a computer
Cyber Security

How Chrome’s Latest Security Update Reflects Cyber Threat Evolution

Google Chrome faced 5 zero-day vulnerabilities in 2025, patched quickly to counter active exploitation. These incidents highlight how rapidly cyber threats evolve and why timely updates are critical. Businesses must adopt structured patch management and monitoring strategies to reduce risk, maintain continuity, and strengthen resilience.

Read More
outgrowing internal it team, IT professional around computer screens listening to an employee query in the office
Managed IT Services

How to Recognise When Your Business Has Outgrown Its Internal IT Team

In this blog, we’ll explain clear signs you’re outgrowing your internal IT team and why it might be a good time to outsource your IT infrastructure and operations to a trusted provider.

Read More
ai in it support outsourcing, cyber security professionals developing an AI software
General, Managed IT Services

The Rise of AI in Outsourced IT Support – What UK Firms Need to Know

In IT support outsourcing, AI is helping UK firms reduce downtime, cut costs, and scale services without compromising quality. Automation tools handle routine queries while machine learning enhances system monitoring and ticketing efficiency. Adoption concerns are addressed through human oversight and reliable design. Redpalm delivers AI-enhanced MSP support tailored to business needs.

Read More
prepare for zero day attacks, person in front of multiple big screens involving global network code for phishing, ransomware, and cyber terrorism search
Cyber Security

How B2B Firms Can Prepare for Zero-Day Attacks in 2025

As a business leader or IT manager, you probably know that technology is a double-edged sword. Although it drives efficiency,

Read More
software licensing compliance, IT technicians in a server room analysing data with a laptop and a tablet
Business, General

How to Stay Audit-Ready For Software Licensing Compliance

Ensuring software licensing compliance is crucial for maintaining business continuity and avoiding legal issues. However, software licensing UK regulations can be complex and change frequently, making it challenging to keep everything in order.

Read More
small business it needs, cyber security professional using multiple tech gadgets with graphic data
Business, Cyber Security

Small Business IT Needs That Impact Business Continuity

Running a small business successfully involves managing many moving parts, like staff, customers, deadlines, finances, and day-to-day operations. Amidst all this, you may not always find the room to take care of your IT needs.

Read More