Sigh here we go again... I was running a virtual machine in the background (don't think it was infected but could be), the latest version of vmware player, and browsing reddit (did not click any suspicious links, am not stupid) and suddenly my windows theme changes to default. Makes no sense, I didn't do anything to cause it.
No malware alerts as usual. Last time it was my browser which did it, though admittedly I did click suspicious links that time, but then I wiped my harddisk and did a windows reinstall.
Here's my thinking: could be that the system was overloaded because of heavy system resource usage, so this caused windows to automatically change to classic. How do I check this in windows event logs?
I know windows prompts me to change to basic theme to save system resources when I am playing games but this time I was not prompted.