Reviving a Classic: Installing Windows 10 on Your Sony VAIO PCG-81114L Sony VAIO PCG-81114L (often part of the VPCF series

• A 64-bit processor (the Sony Vaio PCG-81114L is equipped with an Intel Core i5 or i7 processor, which meets this requirement)
• 2 GB of RAM (the laptop comes with 4 GB or 8 GB of RAM, which exceeds the requirement)
• 20 GB of free disk space (ensure that you have enough space on your hard drive or solid-state drive)
• A compatible graphics card (the laptop's Intel HD Graphics or NVIDIA GeForce graphics card should work with Windows 10)

Download the VAIO Update Utility if available, as it may automatically find remaining compatible software.  Step 2: Use Windows Update for Basic Drivers 

Sony VAIO PCG-81114L Drivers and Windows 10 Installation Upgrading a Sony VAIO PCG-81114L