have run AVG 2010 AntiVirus, MalawareBytes, Spybot Search and Destroy, TrendMicro Housecall, Micrsoft Essentials
Using more than one anti-virus program is not advisable
The primary concern with doing so is due to conflicts that can arise when they are running in real-time mode simultaneously
and issues with Windows resource management. Even when one of them is disabled for use as a stand-alone scanner, it can affect the other and cause conflicts. Anti-virus software components insert themselves into the operating systems core and using more than one can cause instability, crash your computer, slow performance and waste system resources
. When actively running in the background while connected to the Internet, they both may try to update their definition databases at the same time. As the programs compete for resources required to download the necessary files this often can result in sluggish system performance or unresponsive behavior.
Each anti-virus may interpret the activity of the other as suspicious behavior
and there is a greater chance of them alerting you to a "False Positive
". If one finds a virus or a suspicious file and then the other also finds the same, both programs will be competing over exclusive rights on dealing with that virus or suspicious file. Each anti-virus may attempt to remove the offending file and quarantine it at the same time resulting in a resource management issue as to which program gets permission to act first. If one anit-virus finds and quarantines the file before the other one does, then you encounter the problem of both wanting to scan each other's zipped or archived files and each reporting the other's quarantined contents. This can lead to a repetitive cycle of endless alerts that continually warn you that a threat has been found when that is not the case.
Anti-virus scanners use virus definitions to check for malware and these can include a fragment of the virus code which may be recognized by other anti-virus programs as the virus itself
. Because of this, most anti-virus programs encrypt their definitions so that they do not trigger a false alarm when scanned by other security programs. Other vendors do not encrypt their definitions and they can trigger false alarms when detected by the resident anti-virus. Further, dual installation
is not always possible because most of the newer anti-virus programs will detect the presence of others and may insist they be removed prior to download and installation of another. If the installation does complete with another anti-virus already installed, you may encounter issues like system freezing, unresponsiveness
or similar symptoms while trying to use it.
To avoid these problems, use only one
anti-virus solution. Deciding which one to remove is your choice. Be aware that you may lose your subscription to that anti-virus program's virus definitions once you uninstall that software.
Trend Micro’s RUBotted
supposedly monitors your computer for bot related activity and suspicious behavior that are potentially harmful. The program works by regularly checking with an online service to identify behavior associated with Bots. Upon discovering a potential infection, RUBotted prompts you to scan and clean your computer. It has been reported that RUBotted is very difficult to remove as there is no separate program uninstall and are no specific removal instructions available from Trend that I can find. Further, the program's effectiveness is questionable so I don't recommend using it. Read this review of RUBotted
and the user comments.
-- Also note that this program is a beta
version. I seldom recommend using betas of any program as you never know what bugs and quirks you may encounter. These bugs may range in severity from minor features that don't work to problems that cause your computer to crash.
You may have too many applications loading at startup
when Windows boots. Almost all applications you install want to startup when Windows loads. If you allow all these startups, they will compete for and use system resources resulting in poor performance and a slow system. Many of these programs are not needed and disabling them can save resources and improve performance as they can be accessed from Start > Programs or an icon on the desktop if needed. Other reasons for slowness include disk fragmentation, disk errors, corrupt system files, unnecessary services running, too many browser Add-ons/toolbars, failure to clear browser cache, not enough RAM, dirty hardware components, etc. Incompatible browser extensions and add-ons can impact system performance and cause compatibility issues such as application hangs (freezing).
As you use your system it becomes filled with more files/programs and has a natural tendency to slow down so cleaning and regular maintenance is essential. For more information about trimming down the number of startup applications and other ways to improve performance, please refer to Slow Computer/Browser? Check here first; it may not be malware
A red X
is indicative of images blocked by some email programs/providers like Outlook Express and Yahoo as a security feature to prevent you from downloading pictures and other content (like viruses) from the email server. There is usually a setting in Mail options to uncheck the blocking of images.
If you are having similar issues with web pages, the Show Pictures
check box may not be selected. Launch Internet Explorer and select Tools > Internet Options > Advanced tab > Multimedia and put a check mark next to Show Pictures
. If you have the Toggle Images.exe Web accessory installed, click the Toggle Images.exe link on the Links toolbar to turn on images.
Edited by quietman7, 23 December 2010 - 11:08 PM.