Advanced SystemCare (formerly named Advanced Windows Care) is a system tune-up and tweak tool for Windows operating system developed and published by IObit. Its main functionality as declared by the developer includes deleting junk files, reinforcing system performance and speeding up slow PCs.In 2012, IObit introduced Advanced SystemCare Ultimate 6 as a combination of a PC performance tuneup program and an anti-virus program with the anti-virus engine provided by BitDefender.