Cannot Access Secondary Hard Disk

I Cannot Access My Secondary Hard Disk. Please Help!

Situation1: Hello! I have installed an HDD as a secondary hard disk on my PC. It just works fine there till yesterday. It just stopped worked there and could not be accessed as usual. When I just tried to use it, there would be a message saying: "…is not accessible. Access denied". When I checked it in Disk Management, I even found no related hard disk there. Do you have any idea to fix this secondary hard disk issue? I really need at least one copy of everything inside to finish my homework. Thanks for any suggestion here!

How to Format a Sky Hard Drive to Work for My Computer?

Need Use Sky Hard Disk on My PC. What to Do Now?

Hello, everyone there! I do have a Sky hard disk which is not used anywhere for several weeks. Hence, I am wondering whether it is possible to be used on my Windows 7 computer. Is it proper to format this Sky hard disk there and use it as other storage devices? Please help me somehow. Thanks!

No Bootable Drive after SSD Installed

Find no Bootable Drive after SSD Installed. What to Do Now?

"Hello, I hope I come to the right place to ask for helps! Recently, I have changed my old WD internal hard disk with a new Samsung SSD and also transferred all files to this new SSD after installing it well there. And then, the newly downloaded latest version of Windows 7 is also installed there well. However, after finishing all related stuffs, when trying to boot my PC from this new SSD, the computer just says 'no bootable device error'. Does anyone know whether I have done something wrong? What should I do to fix this hard disk error?"

How to Move Data from 1TB HDD to a 4TB HDD

Need to Transfer Everything inside a 1TB HDD to a 4TB HDD

"Hello, I recently have bought a new 4TB HDD for my PC and wonder to copy everything stored on a 1TB HDD to this new drive. And, I just plan to use it as the main drive, not the old 1TB one any longer. But, I don’t know whether it is proper. What is supposed to take care during the data transferring? Thanks for any answer here!"

Why Are My Transfer Speeds so Slow?

Very Slow External Hard Disk Transfer Speeds

Situation1: Hello, what can I do to cope with external HDD slow transfer speed issues? Honestly, when trying to move some important files from the attached WD external hard disk to another Seagate USB hard disk on my Windows laptop, the transfer speed was about 100KB/S at first. It was really understandable. However, seconds latter, it just weirdly dropped to about 2MB/S and never changed back again. It could be really horrible to wait till all about 100GB of data is completely transferred there. Why does that strange thing happen? What am I supposed to do now? Thanks!