Client had a PC infected with viruses and spyware
The PC was used for email, composing proposals, light CAD and engineering calculations
The operating system was Windows XP
The level of infection was such that email was not working and network access was failing
Further the exising antivirus software was corrupted
Additionally because some of the spyware was running resident the pc was unstable, locking up and using too many system resources
In order to resolve removed spyware
Next I removed old antivirus program
Then I installed a new one which had the added functionality of being able to scan for a remove both viruses and spyware
Perfomred a full system scan
The system now works without issue
