Jase2985:
so your saying with more than 750GB of data on a 1TB drive you will have significant issues? sorry but that's not correct. anything less than about 10-20Gb you will start having issues. drives that use their internal space for cache (dont have a specific dram chip for it) may run more slowly but its still going to be faster than a SATA SSD and you will likely never notice it unless your copying large files which you cant as you have no space left.
older SSD's had an issue with being too full with performance. I don't think a 1TB drive would be in that category, but do a google search for it.
I'd still be starting with a new temporary user profile to eliminate a number of software issues.

