hmm they shouldn't really affect each other i think..
servoy stuff (like components and solutions) is all just in the workspace..
there is some shared stuff if we look at the embedded chromium
i think there can be 2 dirs:
[user.home]\.swt\lib\win32 (some dirs here for native binaries)
[user.home]\.equo\cefcache (which is i think the browser cache/storage of the embedded chromium)
if you have another system that is still not working you could try to stop Servoy, delete those 2 root dirs (.swt and .equo) and start servoy again.