MSE Slows Down Computer - Common Reasons
If you feel that MSE slows down computer, check out the system requirements and see if they match your computer configuration. MSE slows down computer if your computer does not meet the minimum system requirements and some other reasons.
If you experience slow computer after installing MSE, see your system carries the following:
- For XP, you should have 256 MB of RAM with 500MHz processor. You also need 140 MB of free hard disk space for smooth functioning of MSE.
- For Vista/Windows 7, you need a minimum of 1 GB of RAM with CPU of clock speed 1 GHz or above. The hard disk space should again be a minimum of 140 MB.
If your computer does not match the above specifications, MSE will slow down the computer. You may opt to continue using MSE or replace it with any other antimalware. If you wish to continue with MSE, the next section explains how the exclusion of some folders will speed up computer without adding additional risk.
Another reason why MSE slows down a computer is the presence of other antispyware on the computer. MSE will not install if you have any antivirus installed on your computer. However, the installation does not check for antispyware. If you have any antispyware such as Windows Defender running separately, you need to uninstall it before using Microsoft Security Essentials. By default, MSE includes Windows Defender so you won't need a separate version running alongside. You need to remove all antispyware, including the one offered by Ask toolbar (often installed with Nero) so that MSE doesn't slow down computer. You will notice a significant increase in the speed of your computer after you remove third party antispyware.
Sometimes, the leftovers of your previous antivirus may also cause MSE to slow down your computer. You can check out the website of your previous antivirus vendor to find a proper tool that removes the antivirus traces. For example, if you were using Norton prior to MSE, you can download the Norton Removal Tool. Similarly, for McAfee too, you get the McAfee removal tool. Other renowned vendors also offer software removal tools that are a better option than Add/Remove Programs. Even after uninstalling through Add/Remove Programs, you can use these tools to remove the leftovers of the previous antivirus.
If you do not find any such tool, you can run a check using CCleaner (both Registry and Hard Disk) or any other free computer cleaner of your choice. After running the cleaner, the speed of you computer should increase.