Help - Entire computer is lagging. New harddrive possibly the cause.

[MegaScientifical]

The past two days my internet has been horrible, and I've also noticed lagging in general with my mouth, visuals, etc. Meanwhile in Process Monitor, I'm apparently getting over 1MB/s when all my programs can barely get to 180kb/s at the very best (Downloading on Steam, playing a simple online game, and three messengers I'd estimate at 700kb/s or something). I also noticed in Task Manager, "System" would max CPU for one of my cores at random (25% of overall CPU). Something is up, and I need a tool to diagnose what's slowing me down.

Edit: I had a new harddrive installed yesterday. We noticed the computer was running pretty slowly after. Today it is unbearable. The mouse lags around, programs barely start. I tried using Windows' Event Viewer and it failed to work. I also tried checking the main directory of my C: drive, and it said no files were there until I clicked away and back in. Everything is lagging out, bugging out, and while the harddrive is the easy solution, I need specifics.

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[MegaScientifical]

I've been running a virus scan. I want a program that specifically finds what is using my connection, because clearly something is. It could be a broken service or something which all I need to do is toggle. Besides that, I'm having other issues that a full virus scan would make trouble.

This started at a random time and I doubt it has to do with a virus. In any case, a program to specifically identify network and general system issues would likely find any software causing it. Otherwise it's hardware. I need help to check.

[suburb]

I've been running a virus scan. I want a program that specifically finds what is using my connection, because clearly something is. It could be a broken service or something which all I need to do is toggle. Besides that, I'm having other issues that a full virus scan would make trouble.

This started at a random time and I doubt it has to do with a virus. In any case, a program to specifically identify network and general system issues would likely find any software causing it. Otherwise it's hardware. I need help to check.

http://www.microsoft.com/en-us/download/details.aspx?id=4865

Download the NM34_x64 if you have 64bit windows and x84 if you have 32bit windows

Just run a capture to locate and find what is causing problems on the network.

[MegaScientifical]

Since this is also lagging my entire computer (The only reasons I was considering network is 1: The internet was coming in slow, but process monitor was registering higher. 2: I've had lag due to routers doing crazy stuff before.), it is probably my new harddrive, right? It started up slow when we first put it in, yesterday I was getting pretty slow, and now it is utterly unbareable. I have 4GB of RAM, my main drive is 1TB, and this new one is 2TB.

[suburb]

Since this is also lagging my entire computer (The only reasons I was considering network is 1: The internet was coming in slow, but process monitor was registering higher. 2: I've had lag due to routers doing crazy stuff before.), it is probably my new harddrive, right? It started up slow when we first put it in, yesterday I was getting pretty slow, and now it is utterly unbareable. I have 4GB of RAM, my main drive is 1TB, and this new one is 2TB.

Is this a custom built computer because is so check your motherboard manual maybe there are specific plugs for the new HDD to plug into to maximize your SATA capabilities so it won't run too slow and as well check BIOS for settings regarding the new HDD

[MegaScientifical]

I'm sure there isn't special harddrive connections on the motherboard. As for BIOs settings, anything in specific to look for? I'd rather not leave the forum just to stare at information I don't understand and possibly break the computer settings somehow, preventing me from returning to ask more questions.

Edit: Avast just finished. The only infected file was a false-positive. Took it an hour for just the quick scan.

[suburb]

I'm sure there isn't special harddrive connections on the motherboard. As for BIOs settings, anything in specific to look for? I'd rather not leave the forum just to stare at information I don't understand and possibly break the computer settings somehow, preventing me from returning to ask more questions.

Not sure what to tell you because every motherboard is different.  Could it be your PSU by any chance.  Sometimes running too much isn't a good thing with a lower end PSU.  Other than that I wouldn't  be entirely sure what is causing the problem.

[Butler]

Plug in the old hard drive to see if that fixes the issue. If it does then that will at least tell you either you do have a virus or something is physically wrong with the new drive.

[Generation]

Your mouth is lagging.

[MegaScientifical]

Part	Price
Case	$29.99 ($4.99 Shipping)
Motherboard	$59.99 ($4.99 Shipping)
RAM	$40.99 ($30.99 After Rebate)
Power Supply	$39.99 ($4.99 Shipping)
Processor	$104.99
Harddrive	$54.99 ($5 off with code by 7/14)
Video Card	$105.99 ($6.98 Shipping)
OS	$99.99
Card Reader	$8.99 ($1.99 Shipping)
USB Wireless Adapter	$11.99

Unless anyone says otherwise, this is my final decision. All credit to Ethan and Inv3rted.

[Butler]

If this comes out rude, it isn't.

But what are we supposed to do with this information?

[MegaScientifical]

So someone who knows better than me can say if it's the power supply not being strong enough, the motherboard not being adaptable, etc.

Although I've had two other drives attached and this problem didn't occur. I had another of this current harddrive, and the only problems only affected the drive itself and not the entire system. Same with the last harddrive. I have to get both replaced, and right now I'm using the first's replacement, which seems to be slowing me.

[dkamm65]

Try this out:

http://www.hdtune.com/

See what health and error scans say.

[MegaScientifical]

Try this out:

http://www.hdtune.com/

See what health and error scans say.

Which version? The non-pro version was last updated 5 years ago, and the pro version's trial says it doesn't support multiple drives or something.

Edit: Installed the Pro Trial:

Number of hardware read errors: 198770256
Number of seek errors: 48369

Updated it:
(01) Raw Read Error Rate: Current 108, Worst 100, Threshold 6, Data 15739144, Status ok
Number of hardware read errors: 15739144
(07) Seek Error Rate: Current: 100, Worst 253, Threshold 30, Data 48396, Status ok
Number of seek errors: 48396

I've had the Error Scan running and so far 0.0% damaged. 21 minutes in,