Hi everyone,
Depending on your security requirements, there is a SD card with built in smart card and TPM. It's marketed for mobile devices and tablets but might work on laptops which have no onboard TPM. I have not checked to see if it has driver support for Windows 8.1. See:http://www.safenet-inc.com/multi-factor-authentication/authenticators/pki-smart-cards/government-mobile-security/. If you are really paranoid, you could get an SSD hd which is edrive compliant in order to offload the crypto to the hardware and use the SD TPM to sure up key security. It might be cheaper to buy a new laptop with a built in TPM and edrive compliant SSD, as opposed to upgrading an existing laptop. Crucial have edrive compliant drives with very fast crypto read/write speeds: http://www.crucial.com/products/m550.aspx
HIDDN also make a nice encrypted SSD drive which has onboard two factor, but the write speeds are much slower than Crucial: http://hiddn.no/laptop/
I was passing by the forum and found this discussion. Ive had a similar issue with a client who has 1000's of corporate laptops with no TPM. Cheers, njoy
