I am sorry to hear this.
We have literally hundreds of thousands of users a succeed in signing in using the AxCrypt app without any issue.
The location(C:\Users\’user name’\AppData\Local\AxCrypt) is for the temporary decrypted copies of the files. Those will either be cleaned automatically at the earliest opportunity or when you click the red clean “broom” icon in AxCrypt.
AxCrypt works by decrypting files temporarily and then launching the appropriate application for the decrypted file, which thus is entirely unaware of AxCrypt. AxCrypt monitors the system for the launched app to exit, and when it detects this it will re-encrypt the file and wipe (overwrite) the decrypted file and then delete it.
I think still your files are not re-encrypted completed(not sure). please click the broom icon in the AxCrypt app when you encrypted the files.
Note: The temporary files will be removed as soon as the opened encrypted file closed/signed out from the AxCrypt app.
Still, you are asking any issues, please provide more information about the issue and write a mail to email@example.com.