I recently bought a laptop with windows 8 with following specifications:
Model No : Sony Vaio SVS15125CNB
Operating System Windows 8 64 bit
Intel Core i5-3210M Processor 2.50 GHz with Turbo Boost up to 3.10 GHz
Chipset Intel HM77 Express Chipset
Graphics Accelerator NVIDIA GeForce GT 640M LE GPU(SPEED MODE) / Intel HD Graphics 4000(STAMINA MODE)
Dedicated Video Memory 2 GB DDR3 (SPEED MODE)
Display - Type 15.5 (39.37 cms) wide (Full HD: 1920 x 1080) TFT colour display (VAIO Display Plus, LED backlight)

When I open any image in Microsoft Photo Viewer, it appears the normal way. However, When I click on the slideshow mode, the image enlarges and horizontally displaces itself with half the image lying out of the screen. I have attached two images, the original one and the enlarged one with the thread.
Similarly, when I use screen clipping in Microsoft One note, the screen which I want to clip gets enlarged on its own with again half the image lying outside the screen. I also observe this kind of the problem with autocad. When Autocad opens, the window of the application is much larger than my screen. Though, I dunno if all these problems are for same reason.
Please help me!!!
Kindly refer to the dxdiag file for system specifications or any information.