I happen to chance upon my windows event log and found several error in the log pertaining to avast services.
Details of one of logs are as below:
Log Name: Microsoft-Windows-Diagnostics-Performance/Operational
Source: Microsoft-Windows-Diagnostics-Performance
Date: 21/04/2013 10:35:48 PM
Event ID: 101
Task Category: Boot Performance Monitoring
Level: Error
Keywords: Event Log
User: LOCAL SERVICE
Computer: Home-PC
Description:
This application took longer than usual to start up, resulting in a performance degradation in the system startup process:
File Name : AvastSvc.exe
Friendly Name : avast! Service
Version : 8.0.1483.72
Total Time : 53362ms
Degradation Time : 48362ms
Incident Time (UTC) : 2013-04-21T14:33:23.687200300Z
Event Xml:
<Event xmlns="
http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Diagnostics-Performance" Guid="{CFC18EC0-96B1-4EBA-961B-622CAEE05B0A}" />
<EventID>101</EventID>
<Version>1</Version>
<Level>2</Level>
<Task>4002</Task>
<Opcode>33</Opcode>
<Keywords>0x8000000000010000</Keywords>
<TimeCreated SystemTime="2013-04-21T14:35:48.298253600Z" />
<EventRecordID>101</EventRecordID>
<Correlation ActivityID="{02F15C40-F800-0000-4697-A42D9D3ECE01}" />
<Execution ProcessID="2068" ThreadID="2084" />
<Channel>Microsoft-Windows-Diagnostics-Performance/Operational</Channel>
<Computer>Home-PC</Computer>
<Security UserID="S-1-5-19" />
</System>
<EventData>
<Data Name="StartTime">2013-04-21T14:33:23.687200300Z</Data>
<Data Name="NameLength">13</Data>
<Data Name="Name">AvastSvc.exe</Data>
<Data Name="FriendlyNameLength">15</Data>
<Data Name="FriendlyName">avast! Service</Data>
<Data Name="VersionLength">12</Data>
<Data Name="Version">8.0.1483.72</Data>
<Data Name="TotalTime">53362</Data>
<Data Name="DegradationTime">48362</Data>
<Data Name="PathLength">51</Data>
<Data Name="Path">C:\Program Files\AVAST Software\Avast\AvastSvc.exe</Data>
<Data Name="ProductNameLength">17</Data>
<Data Name="ProductName">avast! Antivirus</Data>
<Data Name="CompanyNameLength">15</Data>
<Data Name="CompanyName">AVAST Software</Data>
</EventData>
</Event>