A survey conducted by Avast has found that immediate interest in Windows 8 may be weak, and nearly half of the upgrade-ready respondents are eyeing a Mac or iPad rather than another PC. The survey, which was referenced by USA Today, polled 135,000 Windows users last month ahead of the Windows 8 launch. Only nine percent indicated that Windows 8 has hastened their plans to upgrade, and more than 74 percent still have no immediate plans to upgrade.