Sounds like you need to do some computer housekeeping first anyway. I had no trouble opening the page. I posted above for you.
Not sure how much stuff you have on the computer, but I tend to keep a clean machine just for my DAW.
 
One of the best way's to start fresh is pull that old hard drive, buy a spiffy new SSD and start fresh. Use the old drive for data storage.
You shouldn't have to keep downloading the software.  You only need to do this once and then save it somewhere.
I keep at least 3 backups of all my downloaded software.