System Message – Write Fault Error is a notification that is totally fake. It is reported by series of malicious applications that are generally known as rogue programs. In particular, these are rogue hard drive defragmenters, also known as fake HDD. Believe us or not, these malwares are becoming more and more severe as days go by. So, once the malicious code of this rogue is actually implanted into your system you get the following fake notification: