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I am very new to Linux. Ubuntu would freeze so I installed Xubuntu. That would freeze less frequently, but still so. Now, I am on Lubuntu, and it still freezes although least frequently. My system is a Lenovo Thinkpad 11e. Celeron N2940 @ 1.83GHz and 8GB.
The computer freezes in day to day tasks: watching videos, browsing the web, etc. Also, the default word editor was AbiWord. I started a document on AbiWord and saved it. But after my computer froze and I restarted it, it was not able to open that document.