I am trying to improve my computer abilities and it is going slowly, in fact very slowly. I can normally solve most computer problems that I and friends have but it takes a long time. I saw a write up on Ketarin and the advantages of using it on flash drives to keep portable apps up to date. I have tried downloading it several times as a zip file, copied it, and then tried to open it. Every time a problem is flagged up saying: "Could not create or load the datebase file: The type initializer for 'System. Transactions. Diagnostics. Diagnostic Trace' threw an exception." Please go step by step.
Many thanks in advance.