eScan Knowledge base

 : PC runs slow after installing eScan anti-virus :

Generally after any Anti-Virus installation, there will be a minor difference in the systems performance, since the Anti-Virus keeps scanning in the background. But eScan has been designed to take minimum CPU and RAM utilization

There could be various other possibilities /reasons also affecting the slow down of the systems performance. Please refer to the below general checklist for the same:

1) Minimum System requirements:

Before installing eScan first make sure that the system on which you are going to install eScan meets the minimum hardware system requirements for eScan installation. Refer to the below links which shares the information on the same for the appropriate eScan editions:

:Home & Small Office (SOHO) Solutions:

eScan Internet Security Suite (ISS):
http://escanav.com/english/content/products/escan_soho/escan_soho_iss.asp

eScan Anti-Virus for Windows:
http://escanav.com/english/content/products/escan_soho/escan_soho_av.asp

:Small & Medium Business (SMB) Solutions:

eScan Anti-Virus for SMB:
http://escanav.com/english/content/products/smb/escan_smb_av.asp

eScan Internet Security Suite for SMB:
http://escanav.com/english/content/products/smb/escan_smb_iss.asp

:Enterprise & Corporate Solutions:

eScan Corporate:
http://escanav.com/english/content/products/corp_enterprise/escan_corporate.asp

2) Presence of other anti-virus:
Make sure that you have uninstalled existing anti-virus/anti-spyware (if installed any) before installing eScan as this may also affect to the systems performance and is always recommended to have only one anti-virus installed and running in a real-time basis to prevent the system from malwares and for the smooth functioning of the system.

 In the case of Windows Vista, Windows 7 and Windows 8 Operating Systems, Disable the real-time protetcion of "Windows Defender" as it is included and enabled by default in the said operating systems. Windows Defender is Microsoft's antispyware software which provides realtime security from spywares.

3) Older version of eScan:

Always download and install the latest version of our products available on our web site www.escanav.com or www.escanav.com/wiki as it holds enhanced features and fixes to old bugs.

4) Startup programs:

Many programs may launch on system startup through default settings when you install an application. These applications add up and they may be draining your system resources. To see what programs are currently running on start-up, in Windows XP or Vista click on Start, select Run, then type MSCONFIG and hit the Enter key. Select the Startup tab from the dialog box. Here you can deselect any items that are running (EXCEPT eScan applications) that you don't actually need when you first start your computer up. Select Apply after deselecting the startup applications and reboot the system to check for noticeable speed gain when it restarts again.

Advice: If you don't know what something listed in your Startup program is or what program installed it you probably don't need it. Try removing those first and rebooting.

5) Presence of any malware:

Once eScan is installed and updated till date, then perform a full scan of the entire system (including all local drives and removable drives) to make sure that the system is free from malwares.