Here are the hardware requirements for Acer Aspire One D255E to install windows 10
Processor : 1GHz or faster with support for PAE, NX, and SSE2
RAM : 1GB (32-bit) or 2GB (64-bit)
Hard disk space : 16GB
Graphics card : Microsoft DirectX 9 graphics device with WDDM driver
Dual boot Windows 10 in a hard drive partition
Warning : Do not upgrade from an existing version of Windows of Acer Aspire One D255E. Although this is possible, there are no guarantees you will not lose data or programs, nor that you will be able to downgrade if you decide you don’t like it.
We’re assuming a certain level of knowledge here, so if you can’t follow the instructions below, this build of Windows 10 probably isn’t for you.
Step 1: Head to preview.windows.com and click on the link to sign up for the Windows Insider Program. You’ll need to sign in with a Microsoft ID – it’s fully free to create one.
Step 2: After signed in, click the purple Continue button, or if you’re already on the next page, click the purple “Get the preview” button.
Don’t click the the ‘Start upgrade now’ button, though. This will upgrade the version of Windows you’re using on Acer Aspire One D255E, which probably isn’t what you want to do.
Step 3: Download Microsoft’s Windows 7 USB download tool which will allow you to write the ISO image you just downloaded to a USB flash drive. You’ll need a minimum of a 4GB flash drive, and all the data on it will be erased.
Step 4: Prepare your Acer Aspire One D255E to install Windows 10. We suggest using a spare hard drive to keep things as clean an easy as possible. If you don’t have one, then use a partition tool to create a new partition on an existing hard drive.
Step 5: Reboot yourAcer Aspire One D255E and insert your flash drive or DVD. If it fails to boot from that device, then go into the BIOS and set the flash drive or DVD drive as the primary boot device.
Step 6: You’ll see a Windows logo, followed by a language selection – UK English should be selected. Then you’ll need to choose where to install Windows. If you’re using a spare hard drive, delete all partitions or simply choose an appropriate partition in which to install Windows 10. It will need to be formatted as NTFS, otherwise you’ll need to delete the partition and install it in the unallocated space afterwards.
Step 7: Keep an eye on the install as it will reboot your computer and if you don’t remove the DVD or flash drive it will boot from it again, and you could end up repeating Steps 5 and 6.
Step 8: Windows 10 will boot, ask you a few questions and then ask you to sign in with your Microsoft ID. You won’t need an activation key, but in case you’re asked, the windows 10 key is NKJFK-GPHP7-G8C3J-P6JXR-HQRJR
Step 9: When you finally get to the Windows 10 desktop, allow a bit of time for Windows 10 search for drivers for your Acer Aspire One D255E. Initially on our test laptop, it seemed as though the graphics card drivers hadn’t been found and installed. However, after a few minutes this was all done in the background and the correct resolution set.