New hard drive but bookmarks still there

Question

Is it even remotely possible that a "new hard drive" with Mavericks freshly installed could have my old bookmarks on it?? Are they stored with our Apple ID or something? Because I'm on my 3rd replacement drive within a couple of months from this Apple Certified dealer/repair shop, and I just got my computer back yesterday and they said they replaced hard drive, and installed Mavericks, but my Safari bookmarks from my original replacement hard drive were still there! There was no other trace that I could see from the old drive though.
I'm going crazy because I keep bring my computer to this place and they keep "replacing" the hard drive and I can't WORK. It always ends up completely freezing after bringing it home and using it for less than a day. I spoke to them yesterday and they said when they ran the diagnostics on my machine, everything else checked out ok. But is it possible that some other component is destroying my hard drive, or that maybe its not the hard drive at all? Even though their diagnostics say everything is in check? Or do they keep giving me the same hard drive (I never wrote down the serial number of it unfortunately, so I can't check) after they "fix it" or something? I'm going crazy.

Answer 1

What build model (identifier) MacBook do you have?
Since this series was manufactured, upgraded, and continued as the main
MacBook model (not MB/Pro, not MB/Air) from 2006 through 2010, you'd
have to specify so replies to technical questions have a specific basis to it.
If not a MacBook basic series, then it may be a MacBook Pro, etc.
•How to identify MacBook models
•How to identify MacBook Pro models
•How to identify your MacBook Air
You may have to consider getting a hard disk drive from a reputable third
party source and if the MacBook is one that isn't too difficult for the user
to upgrade or replace a hard disk drive, use instructions to do so yourself.
An example of such a HDD & upgrade source, with video & other instructions
is OWC or macsales.com, where you match up parts using the Model identifier
or look through their page and read what they say about identifying your MB,
which is helpful if you choose to also upgrade the RAM chips correctly.
A general reference of what a mac-centric reputable vender can offer includes:
http://eshop.macsales.com/shop/powerbook-ibook-macbook/
If you had access to an official retail Apple Store with Genius bar, they'd likely
be able to perform a diagnostic test to see what the problem(s) are with your
MacBook. Then their staff specialist could suggest a course of action, even
if the computer is out of warranty (likely is) they usually do this for free. Where
an authorized reseller may not be set up to do this, without a service fee.
http://www.apple.com/retail/geniusbar/
There may be other Apple Authorized Service Providers not too far from you.
Or there may be a retail Apple Store with Genius bar within half a day away.
Find an Apple Authorized Service Provider
Visit an Apple Retail Store
The device should have a complete and thorough diagnostic by those who
seek to resolve the issue and not just throw a limited array of parts at it.
For your own security and complete backups of your system & software, you
could get an externally enclosed self-powered hard disk drive that can support
a bootable full system clone (use carboncopycloner or superduper utility) then
you could restore your computer from that, in addition to a separate device for
use with Time Machine, and so on. Be your own first line of tech support. I am.
You could use Disk Utility to see the serial numbers and other HDD info; also
if you can access the system profiler (different name in Mav 10.9 than old OSX)
that too will tell you a cross-section of hardware items and software in the Mac.
Good luck & happy computing!
edited