I have been running (and updating) avast! version 4.8 professional very successfully on my laptop (XP SP3) for a number of years. The licence expires in 10 days or so. I have a new avast licence but need to download the upgrade - avast! Pro Antivirus - which I run on other PCs.
I have downloaded avast_pro_antivirus_setup.exe but when I run the installer I get the message box "Corrupted avast! Antivirus detected" with the message "The installer has detected corrupted avast! Antivirus installation on this computer (service 'aswSP' is running), thus the installer cannot continue. Please repair your computer first."
A very detailed message. Looking in the Winows Task Manager - Processes I cannot detect aswSP . Stop On-Access Protection of avast! 4.8 - makes no difference. I have carried out a repair of avast! 4.8 - makes no difference.
I am loathe to remove avast! 4.8 because if I still can't install avast! Pro Antivirus then I will be left unprotected. Any advice on how I should proceed would be much appreciated