log1, log2 . . . logn files are just backups of log files which systems use to recover from problems in processes such as such as registry updates. They are only called into use if and when there is a problem to help rewind changes. I don't know what you mean by them being corrupt but as they are just backups of files which themselves are only needed in the event of a problem you could simply delete them. If you are unsure about this then simple move them to a backup location in case you ever have need of them.