Really weird computer issue

Helpless Rock

As of about last night my 5 month old Samsung laptop has been basically shitting itself. To further explain that, it slows down to an incredible crawl. Opening any program, including just the windows explorer, takes eons. Even shutting down doesn't work completely properly. I think of myself as fairly computer savvy and can fix or at least figure out other problems but I have absolutely no idea what is causing this.

The mystery continues when I boot into Safe Mode, in that it all works at the intended speed with no issues. Which is how I'm posting this. I've ran CCleaner, Spybot, and Malwarebytes in their full scanning potential twice and all have came up with nothing. I currently have a Check Disk thing going now but it's not going to figure for a long while as there are also 18,000 Mp3's on that partition of the disk as well, so yay..

The one thing I have found that is a direct problem is I have one folder in a partition that cannot be deleted. In normal and safe mode every time I try and delete it I get Error 0x80070091 which Google Search hasn't helped me resolve it in any way. There were files (About 19 .avi or .mkv files, I can't remember which) that are no longer there apparently since the properties on the folder say it's technically empty now. Which is kinda shitty. However, I just cannot see how that folder doing something like that is destroying my entire computers functionality in every aspect of it.

So, I guess what I'm asking is if anybody knows a good way or trick to figure out what the hell is wrong with this dumb machine that makes it not want to do anything. Or how to fix and delete that folder that doesn't wanna.

SniperGuy

Which OS are you on, what specs are your laptop? Have you tried reformatting it?

And how full is your harddrive?

Helpless Rock

Suppose that is pretty useful information. Whoops.

Windows 7 and the hard drive isn't even half full on either partitions. I have not tried formatting yet since I'd really like to fix it before it came to that for practicalities sake.

As for the specs;

Intel i5
4GB of RAM
Geforce 310M
And a Samsung brand HD

Stormwatcher

I had something similar, I think there's some really fucked up file inside that folder, and everytime you open file explorer, that file fucks it all up.
try booting from a linux live-cd or pen-drive and nuking the folder.

MagicPrime

With the speed and ease of installing/reinstalling Windows 7 (especially if you have a physical media) I would just say bite the bullet and wipe the thing.

You might want to think about getting a SeaGate to store all those MP3's on.

And if you do wipe it use this -- http://www.dban.org/

Only way to be sure.

Helpless Rock

As it turns out, I was wrong, and yes that one folder of weirded out files can screw up the entire machine. I did the disk error-check thing in the properties, that took about two hours to finish, and it all went back to normal. The folder is even accessible now and everything, strangely. No idea at all what would cause those files and folder to get all mixed up in the span of an hour, but that was the case in the end. Really weird. Also, yes I have copied over all my music files to my external already.