BSOD Occuring Randomly

Code:

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Use !analyze -v to get detailed debugging information.

BugCheck 7A, {c045dc98, c000000e, 872ba860, 8bb939e8}

GetPointerFromAddress: unable to read from 82dba834
Probably caused by : memory_corruption

Followup: memory_corruption
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Code:

ERROR_CODE: (NTSTATUS) 0xc000000e - A device which does not exist was specified.

DISK_HARDWARE_ERROR: There was error with disk hardware

BUGCHECK_STR:  0x7a_c000000e

Please do the following and report the details:

1. Click Start
2. In the search box, type cmd
3. In the list that appears, right-click on cmd.exe and choose Run as administrator
4. In the command window that opens, type chkdsk /R and hit enter.

You will be prompted whether you wish to schedule a chkdsk scan at next startup, type 'Y' and hit enter. Now restart your computer and chkdsk will automatically run.

Now go through the hard drive checks:
SeaTools for DOS and Windows - How to Use

Yes, do both the short and long generic tests.

During the Long Generic test, it returned "Long Generic - FAIL". What's the next step to take?

Yiu should consider replacing the HDD before it fails completely.

Which means as much as buying a new laptop?

No. Just a replacement HDD or SSD. Thet are quite easy to replace.

Okay. Thank you.

Is there something wrong with the current hard disk?

Could you recommend a hard disk which is compatible with this pc? Currently this is a "FUJITSU MJA2250BH G2 ATA".

Would the Western Digital WD7500BPVX be a good option?