What's good for testing and secure erasing older SSDs?
 

What's some good software that'll run under windoze?

a hammer...

Nitric acid works well too :2 cents:

1. format all ssd drvie.
2 save on fresh formated drive some files can be a 1 or 2 gb of anything ( you can genrate some dump file or files )
3 now encrypt this drive with some windows / mac tools
4. format again.

you can repeat it 2-3 time a key function encryption

Well I needed secure erase because it fixes slow azz Samsung drives
You know, the older PM800 ilk drives
Some of these were Dell OEM (the ones that won't let you update FW)

I ended up using parted magic it worked fine