Q: How to reinstall Mac OS Sierra?

Boot Recovery Mode again. At the OS X Utilities screen (or macOS Utilities, whichever results from booting Recovery), choose the Utilities menu > Terminal.

At the prompt, type:

date

... followed by the Return or Enter key.

A preposterous date is the result of letting a portable Mac's battery run down completely. The installer will refuse to work if the Mac's system date is wildly incorrect.

If that's the case, reset your Mac's system clock using a date and time format resembling the following:

date mmddhhnnyyyy

In the above, you must subsitute the actual date and time in the command that corresponds to the date format used for your location. In other words if your local custom is to use a date like 11 October 2016 then reverse the mm and dd values.

Substitute numerals in the above command according to the following key:

mm = month

dd = date

hh = hour (24 hour format)

nn = minutes past the hour

yyyy = year

Each of those values must be two digits except for the year which must be four digits. As an example if the current date and time is October 11, 2016 at 9 AM your command will be the following:

date 101109002016

Type the date / time command corresponding to your actual time and date in your geographical location, followed by the Return key. Terminal will respond with the date and time you set in the command above.

The time you enter does not have to be precise, it just has to be approximate. If you make a mistake, don't worry about it; date will attempt to parse your input to resemble a format it recognizes.

Quit Terminal and attempt to install Sierra again.

Anshu97 wrote:

 

Once I start my Macbook Pro in Internet Recovery mode (after correcting the Date and time error).

There's option of "Reinstalling OSX Lion", When I click on it, there's the terms and conditions. After that it asks for my Apple ID and password,

The Apple ID must be the one you used to upgrade that Mac to Lion. If you attempt to use a different Apple ID, "This item is temporarily unavailable. Try again later" will appear.

Make every effort to determine that Apple ID. This may help: https://iforgot.apple.com/password/verify/appleid

If you cannot determine that Apple ID, please read macOS Internet Recovery.

1. Read the * note to determine how to force Internet Recovery.
2. You will need a viable Internet connection, preferably a fast one, and one that does not require a "login screen" for you to connect to the Internet.
3. If you do not boot Internet Recovery, you will boot into the existing Recovery Partition, which will only allow you to reinstall your existing operating system.
4. OS X Internet Recovery will enable you to reinstall the operating system installed on your Mac when it was new.
5. It will not require an Apple ID to install.
6. If you are prompted for an Apple ID before Lion even begins to install, return to Step 1.

Do you know how can I create a USB bootable Mac OSX (For my Macbook Pro) from a Windows PC?

That is not possible.