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#21
ESET found malware problems after the other malware scans. They were potentially unsafe, potentially unwanted, and one was riskware.
If you use the computer for internet banking or financial transactions then clean install is the best option.
You could run 5 more AV scans and if all 5 came back clean that could provide some comfort.
However for peace of mind the best option is the clean install.
You could do that at any time. The computer can be used after the clean install without connecting to the internet.
To get better performance you will want to get up to date drivers.
So it will take time to perform the driver updates, Windows updates, reinstall files, applications, etc.