That sounds like way too much memory for ClamWin to be using. How long has the problem existed?

If you are using another AV--a real time one (and you should be), maybe the other AV is also scanning with ClamWin. If you are, exclude the ClamWin program folder, data folder, and quarantine folders from the other AV's scans. Also excude these programs/processes: from the other AV's scans (these are all the .exe files in the ClamWin\bin folder): clamscan.exe, clamtray.exe, clamwin.exe, freshclam.exe, QRecover.exe, w9xopen.exe, and wclose.exe. If possible, also exclude the *.clamtmp temp files that ClamWin uses when scanning. Finally, under the ClamWin advanced tab, make sure the scanning priority is still set to the Low default.

ClamWin will scan every file during a scheduled scan, but most malware will be found in these extensions: bat, cmd, dll, doc, docx, exe, htm, html, js, lnk, pdf, rar, rtf, vbs, and zip. If you use a real-time AV along with ClamWin, I suggest you cohttps://showbox.tools/ showbox https://speedtest.vet/ speed test
nfigure ClamWin to use these extensions in Preferences, Filters, Extensions to scan. Finally, you don't have to scan your entire hard drive. Most malware will be found in these folders: System32, SystemWOW64, Users\Computer Name\appdata, or Windows\temp.

All this might help. Let us know if it doesn't. You can use Windows Task Manage to see what proceses are going on while you are scanning.

Thanks for using ClamWin!