This is a used item. Windows 11 has been installed from Windows 10. There is some sign of use, but overall, it looks very clean. The keyboard has no shine and no fading of the letters. Please check the images for the other conditions. Regarding the battery, it is working, but it is a consumable item and is not covered by warranty. Since there was no AC adapter, I will include an adapter that works with it. (May differ from the image) - Equipped with a web camera, so it's also suitable for telework! - DVD multi-drive is installed, so you can watch and write DVD discs. - Office is installed, so you can edit and save Word and Excel files. ☆Product Specifications☆ Product Name: Pavilion 15-n210TU CPU: core i5-4200U (1.60GHz) Memory: 8GB Drive: DVD Multi COA sticker: Windows 8 LCD size: 15.6 wide glare Storage: HDD 500GB LAN: Wireless compatible Web camera: Yes OS: Windows 11 64bit Office: MS Office Pro+2016 Accessories: AC adapter ☆Notes☆ I have confirmed that it starts up, but I have not performed any other detailed checks. There may be other issues, such as drivers not being installed. Please handle any issues such as missing drivers yourself. Please understand that this is a used item and the above contents before purchasing. I am not very knowledgeable about questions, so I may not be able to respond. I will re-check the product before shipping. Please be sure to read the profile section before purchasing to prevent any problems.