Cannot save Process in Rapidminer

I have reinsatlled Rapidminer 8 since I have cloned my hard disk to a new one. I am able to import excel data perfectly well
However when I started to save my process , it say cannot save process at //Repository/xx . After reading help articles in the forum . I deleted old instance of C:/User/Rapidminer . Did a fresh install but still the problem remained
Next I created a fresh repository folder and tried saving but the same error keep popping up. I am dissapointed since I use rapidminer regularly

Below is the error log. Data1 is the subfolder in my NewLocal repository. 

• Exception: java.io.IOException
• Message: Cannot store process at //NewLocalRepository/Data1/p: Cannot write C:\Users\UserName\.RapidMiner\repositories\NewLocalRepository\Data1\p.rmp: java.io.FileNotFoundException: Entry 'p.rmp' at location '{1}' contains characters which cannot be stored on some filesystems and are therefore illegal.
• Stack trace:
• com.rapidminer.RepositoryProcessLocation.store(RepositoryProcessLocation.java:161)
• com.rapidminer.Process.save(Process.java:1450)
• com.rapidminer.gui.actions.SaveAction$1.run(SaveAction.java:124)
• com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:550)
• java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
• java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
• java.lang.Thread.run(Thread.java:748)
• Cause
• Exception: com.rapidminer.repository.RepositoryException
• Message: Cannot write C:\Users\UserName\.RapidMiner\repositories\NewLocalRepository\Data1\p.rmp: java.io.FileNotFoundException: Entry 'p.rmp' at location '{1}' contains characters which cannot be stored on some filesystems and are therefore illegal.
• Stack trace:
• com.rapidminer.repository.local.SimpleProcessEntry.storeXML(SimpleProcessEntry.java:57)
• com.rapidminer.repository.local.SimpleFolder.createProcessEntry(SimpleFolder.java:341)
• com.rapidminer.RepositoryProcessLocation.store(RepositoryProcessLocation.java:125)
• com.rapidminer.Process.save(Process.java:1450)
• com.rapidminer.gui.actions.SaveAction$1.run(SaveAction.java:124)
• com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:550)
• java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
• java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
• java.lang.Thread.run(Thread.java:748)
• Cause
• Exception: java.io.FileNotFoundException
• Message: Entry 'p.rmp' at location '{1}' contains characters which cannot be stored on some filesystems and are therefore illegal.
• Stack trace:
• com.rapidminer.tools.Tools.writeTextFile(Tools.java:1195)
• com.rapidminer.repository.local.SimpleProcessEntry.storeXML(SimpleProcessEntry.java:55)
• com.rapidminer.repository.local.SimpleFolder.createProcessEntry(SimpleFolder.java:341)
• com.rapidminer.RepositoryProcessLocation.store(RepositoryProcessLocation.java:125)
• com.rapidminer.Process.save(Process.java:1450)
• com.rapidminer.gui.actions.SaveAction$1.run(SaveAction.java:124)
• com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:550)
• java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
• java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
• java.lang.Thread.run(Thread.java:748)