It's my first time to use registered version. I was downloaded and write all music after that i was deleted cause i didn't have a credit card whatever, i made a lot of files and tried to open but nothing appears. I wrote my own music can someone help how to open an old files thnks? I was using noteworthy composer 1.75 thnks again.
There is no reason you shouldn't open old 1.75 files in NWC 2.75a.
With "open" you mean dounble clicking on a .nwc file? Then the problem is in the file association in the windows shell.
Check by using, in NWC, file -> Open.
Something doesn't make sense here... You said you didn't have a credit card, how then could you possibly have downloaded a registered version?
You cannot get the registered version without paying for it first.
If you are a registered owner of a V1.75 licence then the upgrade is $15 USD but you MUST have a valid V1 licence, otherwise V2.75 is $49 USD.
Either way, you must first buy it before you get it.
I think you must have downloaded the demo version.
The demo version has several limitations: