A few days ago, I installed some updates for my Ubuntu. Afterwards, I wanted to restart it but it told me that the
operating system was not found.
Then, I downloaded Ubuntu 13.04....and I could delete the old version and install the new one. But as soon as I take out the stick, it will show me the messages again:
operating system not found.
I have alredy deleted the old operating system. Do I have to do something in the BIOS?
It is a Lenovo laptop.
What can I do?