If Windows Error Reporting files are taking up a lot of space, you can delete very large system-queued Windows Error Reporting files by following this post.

If you don't usually review dump files to troubleshoot problems, they are probably wasting valuable space – here's how to delete them on Windows 10.

When you click Delete Files, Disk Cleanup will go to work cleaning up all the files in the categories you selected, as shown in Figure F. Figure F Disk Cleanup will remove any unnecessary files.