No need to remove and reinstall Chrome.
Do the following:
1) On your computer, open Chrome.
2) At the top right, click More More and then Settings.
3) At the bottom, click Advanced.
4) Under the "Downloads" section, adjust your download settings:
To change the default download location, click Change and select where you'd like your files to be saved.
If you'd rather choose a specific location for each download, check the box next to "Ask where to save each file before downloading."