Roll Back Updates: If an update is causing issues, rolling back the update to a previous version can help.
Rebuild Windows Profiles: If a user profile is corrupt or causing issues, it may need to be deleted and recreated. This can be done through the User Accounts settings in Windows.
3.2 Explain the following common personal computer (PC) security issues
Unable to access the network: Check your internet connection and ensure that your network adapter is enabled. If you are using a wireless connection, try connecting to a different network. If you are still unable to access the network, try resetting your router or contacting your internet service provider.
Desktop alerts: Desktop alerts can be caused by various factors, including malware, adware, and browser extensions. Run a full virus scan using your antivirus software, and remove any suspicious or unwanted programs. Also, check your browser settings and disable any unwanted notifications.
False alerts regarding antivirus protection: False alerts can be caused by outdated or corrupted antivirus software. Ensure that your antivirus software is up to date and perform a full virus scan. If the false alerts persist, try reinstalling the antivirus software or contacting the vendor for support.
Altered system or personal files: If you suspect that your files have been altered, run a virus scan and check for any suspicious activity. Also, ensure that your operating system and applications are up to date, as updates often include security patches.
Missing/renamed files: Missing or renamed files can be caused by malware or accidental deletion. Run a virus scan and check your recycling bin for any deleted files. If the files are still missing, try restoring them from a backup.
Unwanted notifications within the OS: Unwanted notifications can be disabled within the settings of your operating system. Check your system preferences or settings and disable any unwanted notifications.
OS update failures: If you experience OS update failures, try restarting your computer and running the update again. If the update still fails, check your internet connection and ensure that your computer meets the system requirements for the update. You may also need to free up disk space or temporarily disable antivirus software during the update process. If the update continues to fail, contact your operating system vendor for support
Explain the following Browser-related symptoms
Random/frequent pop-ups: These are unexpected windows or advertisements that appear when browsing the internet. They can be caused by adware, malware or potentially unwanted programs that are installed on the computer. To fix this issue, users can run an antivirus or antimalware scan to detect and remove any malicious programs. They can also enable pop-up blockers or ad-blockers in their browsers to prevent these pop-ups from appearing.
Certificate warnings: Certificate warnings appear when a website’s SSL/TLS certificate is invalid or expired. This warning can indicate a potential security threat, such as a man-in-the-middle attack. Users can ensure that they are visiting secure websites with valid certificates by checking the address bar in their browser. They should also avoid entering sensitive information on websites that display certificate warnings.
Redirection: Redirection occurs when a user is redirected to a different website from the one they intended to visit. This can happen when a user clicks on a malicious link or is directed to a phishing website. To prevent this issue, users should be cautious when clicking on links and verify that they are visiting legitimate websites. They can also use browser extensions or add-ons that can detect and block malicious redirects.
