安装SQL sever时 提示“试图访问许可证验证文件时出错，请重新安装SQL sever来更正此文件”

不要让我重装系统。。。。软件也卸载重装了很多遍了，卸载的时候只要是sql的都卸载掉了，相关的服务项也都停止了。

这样吧，你打开sql server的配置管理器，然后把里面所有的运行中的服务全部停止，然后再逐个卸载掉sql server中的每一个程序，然后重启电脑，再重新安装就可以了！记住哦，是全部卸载干净哦！

你好！ The problem usually occurs when you are running anevaluation instance of SQL Server and the evaluation time period has expired. To solve the problem, we can refer to the following ways: 1. Upgrade the Evaluation Edition to a retailedition. 2. Move from an evaluation edition to an expressedition. 3. Back up and restore the registry in Windows. For detail information, please refer to the followingdocument: https://support.microsoft.com/kb/971268?wa=wsignin1.0 如有疑问，请追问。

The problem usually occurs when you are running anevaluation instance of SQL Server and the evaluation time period has expired. To solve the problem, we can refer to the following ways: 1. Upgrade the Evaluation Edition to a retailedition. 2. Move from an evaluation edition to an expressedition. 3. Back up and restore the registry in Windows. For detail information, please refer to the followingdocument: https://support.microsoft.com/kb/971268?wa=wsignin1.0

解决了吗？我正遇到这个问题。

没有卸载干净造成的，到网上找些完全卸载的方法： 解决安装SQL Server试图执行未经授权的操作错误 1. 卸载数据库程序； 2. 卸载数据库相关的其他程序； 3. 删除安装目录文件和C盘下program files(x86)关于sql的文件夹 4. 删除注册表中的内容， 键盘上的“开始+R”可以快速进入运行，输入“regedit”，进入注册表编辑。 “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manage” 中找到PendingFileRenameOperations值并删除它。 找到如下的内容删除 HKEY_CURRENT_USER\Software\Microsoft\Microsoft SQL Server HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server  HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer 找到根目录之后，凡是关于SQL 的所有内容都要进行删除     终极解决办法：重装系统