Your father has a good point. Do not remove any files yet, and do the following:
If they are not too many, please submit each of those files for analysis to Virus Total, one at a time:
Use the 'Browse' button to navigate to the location of the file
Click on a file, and then click the 'Open' button.
The file is now displayed in the Submit Box.
Scroll down and click 'Send File', and wait for the results.
If you get a message saying: 'File has already been analyzed', click 'Reanalyze file now'
Once scanned, please provide the link to the results page for each file in your reply.
If there are a lot of files, select a few and upload them for analysis. Then, post the ones you did not send.
Retired - Doin' Dis, Dat, and slapping malware.