When Noknojon came in, I left it until you had finished your discussion with him before I came back in. Following his remarks I have had a look at your hard drive in Speccy and, for comparison, my hard drives. I think he is right - your hard drive is on its way out.
If you look at the entry for 'Uncorrectable errors', towards the bottom of the SMART data, you will see the figure 'FFFF0001'. This is written in Hex and equates to a decimal number of 4.3 x10 ^9. This is a rather large number! For comparison, the three hard drives I use for Windows on this computer have a total count of 0 (zero), and the only one that has a noticeable number is an old drive I recently installed just to play with Linux.
I would suggest that you back up your data - work, photos, music, whatever - to some external store as a matter of some urgency. DVDs, for example hold about 4.5 Gb each, memory sticks (thumb drives) upto 64 Gb, beyond that external hard drives go up to 2Tb+, and your data is the really valuable stuff on your computer. Then you are going to have to think about a new hard drive.
The problem here is that you almost certainly have a recovery partition on your hard drive to allow you to re-install Windows etc, but getting to use it is not going to be easy because you need it connected to your computer. One way I can think of is to create a Windows bootable repair disc, you can get instructions here :-
then put your old drive into a USB connected enclosure, boot using the repair disc and install from the recovery partition now in the USB enclosure. NOTE - I do not know if this will work.
The other way is just to do a complete fresh install. You have a valid Windows key and if you cannot get it off the sticker on your laptop you can get it from Speccy on your computer - click on the 'Operating system' section. This is edited out by Speccy in the version you published here. If you decide to go this route you will also need to re-install all your other applications so, particularly for any you have bought and downloaded, make sure you have the registration serials - this will save much aggro arguing about whether you have already paid for a license or not ! With the Windows serial, you can use any valid Windows disc of the same type - 64 bit Home Premium in your case, you will not have to buy a new copy, and if you can't borrow one you can download a legitimate copy from Digital River.
One other thing you will need to do before you install a new hard drive is go to the Acer web-site and download all the drivers for your model that you can find. You will need the chip set drivers, audio, video, graphics, ethernet (LAN) and wi-fi (WLAN) and burn them to a CD before you start the install of a new hard drive.