Eugene Computer Repair

The Windows operating system will very likely be infected by a virus when one or more of the following conditions exist.  In almost all instances, the virus infection can be resolved using Windows System Restore. An infected floppy, infected USB drive or infected hard drive is connected to a computer without antivirus installed. Data is copied from an infected floppy, infected USB drive or infected hard drive without antivirus installed. An infected computer is connected to a network with computers that do not have antivirus installed and/or an enabled Windows Firewall and/or all Windows Updates.  Therefore, the other computers on the network have a higher probability of becoming infected. The previous antivirus was not properly uninstalled prior to installing the current antivirus.  Therefore, the current antivirus is corrupted and does not protect the computer. More than one antivirus has been installed on the computer.  Therefore, all antivirus have been corrup...

In Microsoft Windows, it is important there is only one installation of Antivirus and Microsoft Office.  Installing more than one Antivirus Application or more than one version of Microsoft Office will result in the computer being corrupted - no longer stable nor secure. Before Installing Antivirus When antivirus is uninstalled, the computer must be rebooted in order to complete the uninstallation process.  To check if an antivirus application has not been properly uninstalled and requires the use of an antivirus removal tool, please do the following: Click Start - Run. Type: regedit Click OK. Browse to the registry key, HKEY_LOCAL_MACHINE\SOFTWARE If you see entries such as AVG, Symantec, McAfee,  etc. and these products are not in Add/Remove Programs then these products were not properly removed.  Most likely the computer was not rebooted when the uninstallation process prompted to reboot the computer and then another antivirus application was installed on top of t...

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A customer had informed me that all outbound email was no longer being received.  I first checked to see if Microsoft Outlook was Online as opposed to Offline.  I then tested internet service by browsing the internet which displayed nothing unusual.  I then opened the Microsoft Exchange Server - System Manager, the Server Queue displayed a number of messages with the error: The remote server did not respond to a connection attempt.  Enabling and reviewing the Default SMTP Virtual Server log file (C:\WINDOWS\System32\LogFiles\SMTPSVC1) and then sending test email messages from the command line, displayed nothing unusual.  Reviewing the Relay Block List also displayed nothing unusual.  My next step was to call the Internet Service Provider. Qwest/Century Link informed me today that each time they receive a service order from a customer, their system can automatically place a Port 25 Block on Internet Service - even when the service order does not involve i...

Application compatibility is an important component of maintaining the stability and security of the Windows operating system.  As Windows advances, disabling Security Center, disabling Windows Firewall, installing mutliple antivirus applications or installing antiquated software can seriously compromise the stability and security of the Windows operating system.  When antiquated software is installed, the Windows operating system will no longer function properly.  This is because the required and shared components of the operating system have now been comprised, overwritten, downgraded, etc.  File associations have been corrupted, Windows Updates no longer function for the compromised products, Service Packs no longer install for the compromised products, Registry keys are no longer valid, etc. Software Downgrades As a general rule, installing old software on a new version of the Windows operating system will result in the computer being corrupted - no longer stable...

It is extremely common for computer network engineers to utilize internal DNS Servers for managing private/internal processes while using external DNS for managing public/external processes on the internet.  For example, clients/servers on a private network are managed using an internal DNS while public websites on the internet are managed using the external DNS provided by a web hosting company.  It is also extremely common for customers of web hosting companies to use internal mail servers within their organizations to send outbound email.  In order for outbound email originating from an internal mail server to properly route on the internet, they must first have a Reverse DNS Entry also called an A Record for their internal mail server.  Secondly, they must have an SPF/TXT Record in order to meet the requirements of the Sender Policy Framework. The Sender Policy Framework also called Sender ID establishes that the originating internal mail server sending t...