Am I correct in that your original HDD had errors and you replaced that with a 4 TB drive and that is also exhibiting disk issues?
I'd like to see more details about your machine (Software, Hardware, and Firmware). The Speccy report serves two purposes, one to update your Tenforums specs, and two to provide the current operating environment.
Please update the Systems Specs in your forum profile with complete information.
- In the System Manufacturer/Model Number field, manually type Desktop or Laptop adding it to the information already in the field. The specific model number is important - there are often many models of a given series.
For example, my machine is a HP Pavilion dv6, but there are tens of the dv6 series, so dv6-6c10us is the specific model.
- Specify Custom Build as the manufacturer if it is not an OEM machine.
The easiest way to do this is to use the information from a PUBLISHED Speccy report.
See: Speccy - Publish Snapshot of your System Specs
Post the link to the report that Speccy gives you and also open the Speccy link.
Then click here
to view your System Specs on this forum.
When you have both windows open, put them side-by-side and simply copy the information, field by field, from the Speccy report to your System Specs.
To see what information other members provide in their System Specs, click on My System Specs
in the lower left of any post by any member.
Two more requests from this side of you monitor
1) Run a quick malware scan on your machine to rule out malicious code.
Malwarebytes Anti-Malware Free - Windows 7 Help Forums
2) Post a Disk management screen shot
I'd like to see your Disk Management.
Download this zip file (contains dmDskmgr-vd.mmc)
Double click dmDskmgr-vd.zip to open the compressed folder
Double click dmDskmgr-vd.mmc to launch the custom Disk Management console
You'll get an output similar to this:
Press Alt+PrtScn to grab a snapshot of just the Disk Management window
Open Paint and Ctrl+V to paste it, then save the image
Attach the image to a new post.