How to solve a keyboard problem on a new laptop?

Question

Windows

Good afternoon. I bought an Acer E 15 laptop with a pre-installed eight.
Since old programs are used, I decided to immediately change to the seven so that there would be no problems. Even at the stage of formatting the disk, I could not enter a partition size of 100,000; for each press of a number, it was entered twice. Somehow entered.
After starting the system, the problem remained - double pressing the keys, when you press the Win, Shift, Ctrl buttons, they remain pressed until the system is rebooted.
I tried to install drivers from the manufacturer's website for Win7x64 - it did not help.
I tried to install all Windows updates - it did not help.
What could be the problem and can I legally return it to the store if the problem cannot be solved by me? What points to refer to?
About preinstalled system:
For the sake of interest, I tried to click "activate windows", I got the message "an error occurred during activation." There are no stickers from Windows on the case. Maybe it's not even OEM'naya?

Answer 1

For starters, is the problem in hardware or Windows?
Find, borrow, go to a computer store - and connect a USB keyboard to your laptop. Look at the result. Draw conclusions.
Usually, if fitman Windows is pre-installed, there is a "beautiful" sticker below the keyboard, and the second one on the bottom with a license number.

Answer 2

Even at the stage of formatting the disk, I could not enter a partition size of 100,000; for each press of a number, it was entered twice. Somehow entered.

Did you have such input problems in Windows 8?
Are you using the original Win7 image or "build_from_Makar.torrent"?
Try to boot from any LiveCD/USB (Linux, WinPE, etc.), will you have the same input problem? If so, try a different Win7 distribution.
Should be an OEM sticker on the back of the case
Quoting MS

The system builder is required to provide the customer with a complete set of OEM licenses, which, in the case of operating systems, includes:
....
Certificate of Authenticity (COA). The system builder must affix the COA to the computer case in a visible location. ...For mobile PCs - the bottom surface of the case. ....

There is an important point, if your check indicates that the laptop comes with an operating system, but there are no stickers and OS, and there are no other signs that the laptop was with an OS, then feel free to format the disk, take it to the store, explain the situation, try to negotiate. (no need to report that you yourself formatted something or tried to reinstall, say that you received it in this form)
If they don’t want to, then write a claim in two copies that you were misled, there is no sticker and OS on the laptop ( read on the Internet how such statements should be written). You give one to the seller, the second with the seal of the seller and the signature of the recipient (date, signature, position and full name of the recipient) you take for yourself, be sure to indicate your contact details (name, postal address, phone number). (again, do not indicate what you formatted, etc.)
In general, study consumer protection law .
In addition, 2 scenarios are possible,
1. The store works in gray and sells leftists.
2. The store is open and there was an error due to the negligence of the staff.
Option 1.
If the store works in a gray area and the staff is completely crazy, then the application may not even be accepted and you will be sent to known places. There is already a question of the legality of the work of the Rospotrebnadzor store to help you , call the hotline, try to consult there, I would also consult with a lawyer.
Option 2.
If the store is open, then time is not in your favor, because, as far as I remember, you need to respond within 7 (maybe 14) days, if you miss it, then your claim will be invalid and the seller has the right to refuse you .
ps But it seems to me that you just have a clumsy distribution :)

Answer 3

An even weirder solution to the problem is to remove and insert the battery Oo