New Patches Cause BSoD for Some Windows XP Users Based on the thread it appears the KB977165 has been narrowed down as the culprit. So the rest of the patches are probably safe to install.

Windows XP PCs aren't completely immune to WannaCry (manually installing it will do the trick), but at the very least, the BSOD seems to get in the way of the ransomware doing its job locking up ...