Will not go into sleep mode. Message says sleep mode prevented by 'Microsoft .NET Framework v1.1.4322 Update'.

Hi Posquito,· Did you install any windows updates on the computer prior to the issue?· Which antivirus software is installed on the computer?Try the following steps:Step 1:Restart the computer once and check if you are able to put the computer in sleep mode.Step 2:Install the latest Windows Updates and restart the computer and check if it helps.How to configure and use Automatic Updates in WindowsHope this helps. Look forward to hearing back from you.Thanks and Regards,Santosh Y – Microsoft SupportVisit our Microsoft Answers Feedback Forum and let us know what you think.