Yes, it is wise to run a full scan with Windows Defender periodically in order to identify any threats that may have threatened your computer. With the ever-evolving threats posed by malicious software, spyware, viruses, and malware, running regular scans can help to protect the data stored on your computer from being compromised or damaged.
Full system scans are a thorough look at all of the programs installed on your computer, including those that are hidden, allowing you to detect and remove any malicious files or programs which may have been installed without your knowledge. This includes additional scans of key system areas such as the browser, Windows registry and Windows services. In addition, these scans can help to ensure that Windows is up to date with the latest patches and service packs, which can help to reduce the risk of an exploit occurring.
When running the scan, it is important to ensure that all areas of the system are scanned, as leaving any of these out may mean that malicious files can remain undetected. This includes scans of mapped network drives, external drives, removable media, and any other systems connected to the network. It is also important to pay attention to what is being detected during the scan, as some malicious programs do not always present themselves as malicious until the scan is complete. If a malicious file or program is detected, Windows Defender will usually provide a notification, prompting you to take action or contact a qualified professional.
Once the scan is complete, it is important to review any of the results in order to ensure that any malicious software is removed. Following this, it is important to keep up to date with the latest security updates and anti-virus protection in order to ensure that your system remains secure in the future.
Overall, running a full scan with Windows Defender periodically is an important step in ensuring the safety and security of your system. By running scans regularly, you can help to detect and remove any potential malicious files or programs that could otherwise go unnoticed, and maintain a secure system for the future.