Do you have of this archive downloaded in the same folder?
: Always right-click and extract part1.rar . The software will automatically find and pull the data from part2.rar and any subsequent parts to rebuild the original file. 48DR985B96L68S85P586He.part2.rar
7-Zip : A popular, free, open-source alternative for merging and extracting multi-part files. Troubleshooting Do you have of this archive downloaded in the same folder