V42 update will not install, and older V36? will no longer run? Help

Have Lenovo laptop (junk !) with Vista 32bit (junk!)…anyway, several days ago was prompted to update CD to V42 (think previous, buggy version was V36) so after clicking on update, I no longer have start up access to either version…42 will not install, 36 will not open. Tried complete uninstall and even a “system restore” to date prior to “suggested update” … No Luck with getting CD up and running again. Error notice:

Problem signature:
Problem Event Name: APPCRASH
Application Name: dragon.exe
Application Version: 36.1.1.21
Application Timestamp: 5477224b
Fault Module Name: dragon_s.dll
Fault Module Version: 36.1.1.21
Fault Module Timestamp: 54772216
Exception Code: 80000003
Exception Offset: 004c1970
OS Version: 6.0.6000.2.0.0.768.3
Locale ID: 1033
Additional Information 1: 894f
Additional Information 2: 1f65d2c6e481ac18d7dade7bcc71c9a5
Additional Information 3: d81f
Additional Information 4: 7961e3b6e7d3f43aa5baa519f8a4a926

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can anyone suggest a remedy?