很可能Visual Studio正在更新，就像错误消息暗示的那样，如果你等待几分钟更新完成，你应该能够再次运行Visual Studio而没有问题。

If the problem persists or if you're just curious, open up your task manager and see if there is anything related to (Microsoft) Visual Studio running but don't just kill the process. Check instead if the process is using any resources - if it has a high I/O count, then it's actually updating and you should let it do its thing. If CPU-usage and memory usage remain mostly constant and there is no disk activity for the process for several minutes, this could mean that the process is stuck. You might have to kill it, but proceed with caution. Hopefully if this is an update for Visual Studio, the process name should include a version number or some sort of indication of what kind of update is being applied that you can use to search for more information through a search engine or through Microsoft's online resources.

您可以午餐任务管理器或进程黑客和终止VSSVC.exe。它是影子复制服务的一部分，用于系统恢复、系统文件保护和“以前的文件版本”功能，但可能会导致问题。 还原点是在系统变更时自动创建的。

对于VS2019上的相同问题，清除%temp%文件夹对我有用。

尝试检查任务管理器并杀死任何与Visual Studio相关的进程(任何版本)。

更新: 正如许多人在评论中提到的，最好等一段时间，直到这些过程自己结束

在任务管理器上，杀死“Visual Studio安装程序”。这对我很有效

我今天遇到了同样的问题(VS 2015更新3)。注意到服务“VSStandardCollectorService140”被停止了。(我昨天登录时出现蓝屏错误。可能与此有关)。重新启动这个服务，它正在工作