I bought this computer almost 3 months ago. It showed good performance to begin with, but after almost a month and half, it's been locking up at random times with frozen screen. As a result, I have to hard reset the computer. It is now happening at least two times a week. The computer do not get overheated and it could not be the reason for this issue. This is very disappointing that I have to hard reset this brand new computer for such an issue.I am using that in my office which is mainly working with Microsoft Office, and checking/responding emails.