gowtham251 wrote:
I am trying to get another mac still.local apple service centre people can do troubleshooting this problem?
An Apple Store won't do more than want to perform a clean install. Apple does not care about your data since Apple expects the user to have good backups. This policy regarding user data has been Apple policy for about 10 years or more.
An Apple Authorized Service Provider may provide extra services to assist with data recovery, but once data recovery is done, they also will likely just recommend a clean install of macOS because that is the simplest option here since you have multiple issues here.....missing user account and no Free storage space, perhaps even more issues that we are not aware. Keep in mind the quality of service is only as good as the tech's own knowledge & experience. In my own personal experience the average repair tech does not check the health of the drives before delving into the other issues which is a big mistake especially when it comes to recovering data.
FYI, keep in mind if this was a 2018+ model, then it is unlikely anyone would be able to recover data from a broken Mac due to all of the hardware, software, and security changes. So going forward, please have frequent & regular backups. The more important the data, then the more copies of that data & backups you need...in fact two different backup methods is a good idea for critical data.