Resource management is especially important on Tablet PCs where performance is balanced against weight and battery life. Many Tablet PC and UMPC users are left with a particularly poor experience when it comes to anti-virus software.
Over time Anti-Virus software has generally become bloated with features like link and search scanning, email filtering and anti-spam. Ultimately your Tablet PC can be come so weighted down performing all of these security functions that it runs like a snail…
Finally there is a decent solution direct from Microsoft called Microsoft Security Essentials. It is a simple, free anti-virus client that just does anti-virus. We have found that it adds very little overhead to your Tablet PC so everything runs much faster.
If you need features like anti-spam and email scanning we recommend that use a hosted service like MailGuard. With a service like MailGuard, the filtering of spam and viruses is done before it gets to your server or Tablet PC. It is much more reliable and it has many other benefits like increased security. That means that your Tablet PC is not bogged down performing those tasks.