: Right-click on sc24737-PCBS2v10109.part1.rar and select "Extract To..." or "Open with WinRAR".
Because this is a multi-part RAR (indicated by .part1.rar ), you cannot extract the parts individually. sc24737-PCBS2v10109.part1.rar
: If your extraction software gives a "solid archive support unavailable" error, you likely need to switch to the official WinRAR or 7-Zip, as some lighter utilities cannot handle solid compression. : Right-click on sc24737-PCBS2v10109
Do you have of this archive (e.g., part2, part3) in your folder? part3) in your folder?