Urgent Help Needed re Ultra USB 3.0 Flash Drive

I have just bought this flash drive as I need to password protect my files.

I have plugged in the drive and run the Sandisksecureaccessv3 and it just takes me to a page to log in but I have not had the opportunity anywhere of setting up a password in the first place.  I tried installing the run software again from the website and it says failed to read system files or something like that.

Can anybody help me?

Thanks

Maybe the links on this page will help you.

https://kb-eu.sandisk.com/app/answers/list/st/5/kw/secureaccess%20guide/page/1