How do I rename my backup?

All Acronis True Image 2016 backups that are not stored in Acronis Cloud, have names like this: my_documents_inc_b2_s3_v1.tib. See detailed explanation of each part of the name in the user guide at http://www.acronis.com/en-us/support/documentation/ATI2016/#22747.html

When you want to change the name of your backup, you should open "Backup Operations" menu as shown at http://www.acronis.com/en-us/support/documentation/ATI2016/index.html#34302.html and select "Rename" option. This is the correct way of renaming backups in Acronis True Image 2016.

After you do that all future .tib files will have the new name. Previously created .tib files will not change their names.

Ending part of the name, e.g. inc_b2_s3_v1 is obligatory and is added automatically to .tib file name. You cannot remove this backup name`s part from program`s interface.

What will happen if I rename .tib file in Windows Explorer?

In most cases renaming .tib file outside of Acronis program, for example in Windows Explorer, makes the tib file and related backups and their parts unusable. We strongly recommend avoiding renaming .tib files outside of Acronis program`s interface.

You can safely change .tib file name in Windows Explorer only if all these four conditions are met:

1. TIB file is not part of backups displayed in Acronis True Image interface. You can remove backup from Acronis interface by selecting "Delete" - "Settings only" in "Backup Operations" menu.
2. TIB file is not part of several files-volumes forming single backup, e.g. my_documents_full_b1_s1_v1.tib and
   my_documents_full_b1_s1_v2.tib. Their names differentiate only by the number after ending v: v1 means first volume of the backup, v2 - second etc.
   
3. TIB file is a full backup.
4. There are no incremental nor differential backups that depend on this backup or you do not need them.

Then you can add this backup as "existing" backup" to work with it Windows version of the program or locate it though "Browse" dialog box in Acronis rescue environment (bootable media and Acronis Startup Recovery Manager).

There is an exception to the above mentioned rule: if backup`s validation fails (corrupted, incomplete backups) and there is adjusting .tib file with the same name plus "-2" (e.g. "MyPC" backup fails to validate and you see MyPC_full_b1_s1_v1.tib and MyPC_full_b1_s1_v1-2.tib in backup folder), the first .tib file may represent unreadable part, while the second (with -2) would be the healthy copy of the backup. Then you can change the name of the first .tib (MyPC_full_b1_s1_v1.tib) to any other value (e.g. MyPC_full_b1_s1_v1_damaged.tib) and remove "-2" from second .tib`s name in Windows Explorer. The program will then attempt to use the second backup and if validation succeeds, you could recover from such backup. Described situation occurs in rare cases, when first .tib file is corrupted and the program is not able neither to delete it nor to update paths to .tib files in its internal database.
Note that presence of "-2", "-3", "-4" etc in backup file name does not represent a problem with the backup on its own. . These numbers are added automatically if there is a .tib file with such name already present in the folder, as described at http://www.acronis.com/en-us/support/documentation/ATI2016/#22747.html Only if validation fails, backup is considered as damaged/incomplete.