Sorry to say, but briefly: your files are probably lost.
You appear to have encrypted the key file with Windows EFS, and then lost the keys to the EFS encryption by way of the re-install. This is probably the single most common cause of data loss in Windows – encrypting files (not just AxCrypt key files) with EFS and then re-installing Windows or losing the original installation in some other way.
I must also mention that we do display a clear warning to print out a physical copy of the key file when you create one. But, as many don’t do this, the key file option has shown itself to be too dangerous so we do not have this in AxCrypt 2. AxCrypt 1, which you’re using, is obsolete and unmaintained since several years.
Once again, I am sorry to be the bearer of bad news, but this is what seems to be the situation.