Put the summary of the bug you're having here
What I expected to happen was...:
Describe what you thought should happen here
What actually happened was...:
Describe what happened here
Steps to Reproduce:
1. Transfer map from windows 7 to windows 8
2. put the the save file in appdata's save folder
3. load minecraft and open map
Linked issues
Attachments
Comments 2
Duplicate of MC-13510.
But your Java is out of date. Please update your Java to the latest version: http://www.java.com/en/download/ . Keep in mind that when using a 32-bit browser on a 64-bit OS the automatic version detection will only show the 32-bit version of Java, the 64-bit version needs to be downloaded manually: http://www.java.com/en/download/manual.jsp .
Please attach the crash report as a .txt document.