--- title: "security — Repair Tips & Guides" description: "security guides from BAYAS Dhaka — tips, costs & DIY fixes. Expert computer repair insights for security." canonical: "https://bayas.com.bd/blog/category/security" breadcrumb: ["Home", "Blog", "security"] --- # Computer Security Guides — Virus Removal & Data Protection in Dhaka 2 articles Computer security threats are evolving rapidly, and Dhaka users are frequent targets of malware, ransomware, phishing attacks, and data breaches. The Security category equips you with the knowledge to protect your personal and business data — covering antivirus recommendations, firewall setup guides, safe browsing practices, and steps to take after an infection. Our articles explain how to remove persistent malware, recognise phishing emails in Bengali contexts, enable BitLocker or FileVault encryption, configure Windows Defender, and back up critical files to the cloud or an external drive. We also cover physical security — locking your BIOS, securing your Wi-Fi network, and safeguarding against theft. If your computer is already infected or you need help securing your network, BAYAS offers [on-site virus removal and security setup in Dhaka](https://bayas.com.bd/services/computer-home-service-dhaka). Our technicians can clean infections, install security software, and harden your system against future attacks. [Message BAYAS on WhatsApp](https://wa.me/8801712644590?text=Hi%20BAYAS%2C%20I%20need%20virus%20removal.) for help. security ## [Computer Virus Removal Dhaka — Malware Clean Service](https://bayas.com.bd/blog/virus-removal-dhaka) Professional virus removal in Dhaka from BDT 1,200. BAYAS technicians remove malware, ransomware & spyware at home. WhatsApp 01712-644590. Security ## [Computer Virus & Malware Removal in Bangladesh (2026)](https://bayas.com.bd/blog/computer-virus-malware-guide-bangladesh) Computer virus & malware prevention & removal in Bangladesh — symptoms, DIY fixes & when to call a pro. ## security — Frequently Asked Questions What is the best antivirus for computers in Bangladesh? For most home users, Windows Defender (built into Windows 10/11) is sufficient when kept updated. For additional protection, free tiers of Bitdefender and Kaspersky are excellent. Paid options like Malwarebytes Premium or Eset NOD32 offer real-time anti-malware and ransomware protection. BAYAS can install and configure security software on your computer during a home visit. How do I remove a virus from my computer in Dhaka? Start by booting into Safe Mode with Networking, then run a full scan with Windows Defender or Malwarebytes. Remove any detected threats. Check browser extensions for unknown add-ons. Reset browsers to default settings. If the infection is persistent or your files are encrypted (ransomware), stop using the computer immediately. BAYAS provides professional virus removal in Dhaka — we clean infections, recover data, and secure your system. Is it safe to use online banking on a public computer in Dhaka? No. Never access banking, email, or any account with sensitive information on a public computer or shared device. Keyloggers, session hijackers, and browser-based malware could capture your credentials. Use your own trusted device with up-to-date security software. If you suspect your personal computer has been compromised, BAYAS can clean and secure it. How can I protect my computer from ransomware? Three essential steps: (1) Maintain regular backups — the 3-2-1 rule (3 copies, 2 media types, 1 off-site / cloud). (2) Keep Windows, apps, and antivirus updated. (3) Never open email attachments or click links from unknown senders. For business users, enable Controlled Folder Access in Windows Defender. BAYAS can set up automated backup and security configurations during an on-site visit. ## Need help now? Talk to a BAYAS technician. Send a WhatsApp or tap to call — most jobs in Dhaka get a same-day home visit. [WhatsApp Now](https://wa.me/8801712644590?text=Hi%20BAYAS%2C%20I%20need%20a%20quote.) [Call 01712-644590](tel:+8801712644590)