Hi there and welcome
We may be able to fix it here.
What is the issue you have with the Laptop?
ok, can we do the following please.
Power off the mac
Then start the Mac and hold down the Command and R keys at startup.
Hold these keys until the Apple logo appears. After your computer finishes starting up, you should see a desktop with an OS X menu bar and an OS X Utilities window
choose Disk Utility from the Utilities window, or from the Installer menu if you're started from an installation disc.
Click the First Aid tab.
Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
Select your Startup Disk (usually named "Macintosh HD").
Click Repair. Disk Utility checks and repairs the disk.
Let this complete and when it has, tell me if you still have the problem please.
yes, its at the top
yes please, when it has completed.
Data corruption on the hard drive, I see it a lot, so we repaired everything, I would advise, just before you go into your exam, to do the procedure we just did, it should be alright but this would make sure. Just do it an hour before.
I marked this question to never close so if you have continued problems, or would like any additional information or assistance, please do not hesitate to let me know.
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Whats a Scootch, a few drops?
Yes it can, and this we repaired now via the procedure we just ran.
There should be none, we have fixed the corruption which stopped the problem as you saw
If there were it would be still an issue now as it would be a hardware problem and what we did would not fix that.
The pad is very resistant so I really do not see the drops causing any hardware issues, but if it did you would be having the issues now as we speak
your most welcome and good luck with the Exam!
If you would like any additional information or assistance, please do not hesitate to let me know.