One of this most typical causes out of a slow-running computer could be the presence of malware or viruses. These may have been unknowingly installed through email attachments or viewing malicious websites. To combat this problem, it's important to install reliable anti-virus computer software and run regular scans.Viruses could result big harm to your computer. Make sure you have a reliable antivirus program installed plus keep it up-to-date. Operate ordinary scans and stay cautious when downloading e-mails or browsing the web. Avoid opening suspicious email messages or links.