It is not enough just to install an antivirus on your computer; you need to run a full system scan in time to avoid system infection and data loss.
- What is the difference between a quick scan of an antivirus and a full
- 5 times when it is worth doing a full check
- When installing or changing antivirus for the first time
- After downloading or copying a large amount of files
- Periodically for prophylaxis
- If you suspect a virus infection
- If another person has been using the computer for a long time
- Does antivirus give 100% protection
What is the difference between a quick scan of an antivirus and a full
Most antiviruses allow both quick and full scans. When you enable quick scan, only those objects are scanned that usually start loading at OS startup. It is obligatory to conduct a study for the presence of viruses in the files of the system memory, as well as objects that have been added by the user.
Disk boot sectors are often included in the quick check program. When the fast mode is enabled, the most important files for the system are examined, as well as objects that are most often infected with malware. When this scan mode is enabled, the antivirus does not take up too much RAM, so there is no slowdown in other programs. But this approach does not give a 100% guarantee that there are no viruses on the computer.
During a full scan, the antivirus uses large system resources, so the use of other programs is difficult. This method involves scanning and assessing the severity of all files present on the computer.
5 times when it is worth doing a full check
There are at least 5 cases in which an unscheduled full virus scan is recommended. This will avoid many problems associated with the penetration of malicious software onto the computer.
When installing or changing antivirus for the first time
It is recommended to run a full system scan for viruses and spyware immediately after installing the antivirus. This is especially important if the computer was not previously protected by antivirus for some time. In this case, it will be possible not only to see the installed antivirus in action, but also to identify hidden threats.
Some malware that gets into the system can sleep for a long time. These viruses and spyware are extremely dangerous because they can be activated at the most inopportune moment. Immediately after installing the anti-virus, you must run a full scan to identify hidden threats and neutralize them.
If you plan to change one antivirus to another on your computer, you also need to run a full file scan after the installation is complete.
After downloading or copying a large amount of files
Special vigilance should be exercised when downloading files. This is especially true for large downloads, since a malicious object can easily be found among them. Often on software sites, you can see marks that the file has been scanned for viruses. Such information should not be 100% trusted. To protect yourself, immediately after downloading a large file, you should run a full scan of your computer with an antivirus.
A deep check is also necessary if a large amount of data has been downloaded from a flash drive by a stranger. Such objects can also be infected, even without the knowledge of the original owner. Your best bet is to do a deep file system scan to keep your PC safe.
Periodically for prophylaxis
Many professionals recommend performing a full scan at least once every 1–3 months. Checks like these are time consuming but should not be ignored.
If a person often downloads files from the Internet, it is advisable to conduct a full scan at least 2 times a month. This will help protect your computer and the data stored on it from spyware and viruses.
If you suspect a virus infection
If there is a slowdown in the system, it has begun to load slowly or open files, or when strange objects and folders appear, it is better to run a full scan right away.
If there is any sign of a change in PC performance, do not delay the full scan. If malware is the problem, the situation could get worse at any moment. Important data could be stolen or lost and the file system damaged.
If another person has been using the computer for a long time
If another person has previously used the computer, a full scan must be performed. This is because a past user may have ignored the need for regular checking. Also, an outsider can act in their own interests and install spyware. A deep scan will identify the problem and fix it.
Does antivirus give 100% protection
Viruses and other malware are often upgraded and improved by attackers. This often makes them invisible. Because of this, no antivirus can 100% protect your computer from malware. To prevent infection, you need to be careful when downloading files, do not click on dubious links and perform a full scan of the system with an antivirus in time.