Original seal will be opened by our engineers for upgrade ONLY, 1-Years Warranty on upgraded RAM/SSD/HDD and original 1-Year Manufacture Warranty on remaining components. Computers with professional upgrades and customization. The manufacturer box will be opened by our professional engineers for customizing and testing. Factory defects & blemishes are significantly reduced by our in-depth inspection & testing. | Hp | | Upgraded | 17.3'' Full HD laptop-Intel Core i7 1355U,64GB, 512GB SSD ,Numeric Pad, Windows 11 Home | Silver | Best Buy