I have installed Ubuntu 14.04 and Windows 8 on my system (dual boot), Everything was working fine until graphical interface of Ubuntu crashes after updating it to 14.04.2 (unity fails to start after booting). Now i want to reinstall Ubuntu but i am a little worry that it might clean my windows data. Is it possible to safely remove and reinstall Ubuntu without affecting Windows 8 files?
I will appreciate it if you explain what is the safest method.