Y2k.7z.001 -

You only need to interact with the ( .001 ). The software will automatically "stitch" the rest together. On Windows (Recommended)

Look for Y2K.7z.002 , Y2K.7z.003 , and so on. Keep them together: All parts must be in the same folder. Y2K.7z.001

You are likely missing one of the parts (e.g., you have 001 and 003, but missed 002). You only need to interact with the (

The download may have been interrupted. Re-download the last part in the sequence. you have 001 and 003