用户帐户必须能够写入文件及其所在的文件夹；它应该能够在文件夹中创建和删除文件. laccdb文件的存在并不一定意味着访问已锁定数据库.它的存在可能是多种情况下的结果，其中一种可能是用户帐户无权从该文件夹中删除文件.

The user account must be able to write to the files and to the folder in which they are located; it should be able to create and delete files in the folder. The presence of the laccdb file does not necessarily mean that access has locked the database. Its presence could be the result of any of several circumstances, one of which could be that the user account doesn't have permission to delete files from the folder.