Just installed ESS in XP Mode and I get the following message after installation: I've never received this message after any install and I've been using ESS for years. I also notice that a scan is automatically started and it takes a long time for each file to be scanned. The ESS tray icon remains as pictured below: It's been over 1.5 hours and it's still scanning. Here's where it's at now: Can ESS be installed in XP Mode? I tried Microsoft Securiy Essentials with a different VM and it worked flawlessly. I want to use ESS since it's also protecting Win7 which is hosting the VM's. My Computer Specs: Win7 x64 SP1 ESS 188.8.131.52 English Modules: Virus signature database: 6516 (20111004) Update module: 1037 (20110921) Antivirus and antispyware scanner module: 1322 (20110923) Advanced heuristics module: 1118 (20110419) Archive support module: 1136 (2011081 Cleaner module: 1051 (20110420) Anti-Stealth support module: 1026 (2011062 Personal firewall module: 1069 (20110825) Antispam module: 1016 (2010120 ESET SysInspector module: 1221B (20110623) Self-defense support module: 1018 (20100812) Real-time file system protection module: 1006 (20110921) Translation support module: 1031 (20111003) HIPS support module: 1026 (20110725) Internet protection module: 1022 (20110811) Web content filter module: 1009 (20110705) Advanced antispam module: 1018 (20110920) Database module: 1016 (20110726) 12GB Memory 1TB HDD Update: It just finished the scan but it started another "startup" scan... and another scan. It's in a loop. Cannot use a browser to access internet unless I disable the firewall.