Thank you for viewing. YouTube viewing possible LibreOffice installed i7 processor Specs: Model: LaVie LL750/F Model Number: PC-LL750F21KW Manufacturer: NEC CPU: i7 2670QM 2.20GHz 4 cores/8 threads Memory: 8GB Screen Size: 15.6 inch Resolution: WXGA (1366×768) HDD: 750GB Optical Drive: CD, DVD drive OS: Linux Mint 22.2 Cinnamon !!!Caution!!! The OS is not the originally installed Windows 7, but Linux Mint. Screen: OK, I think there are no dead pixels. Built-in speakers: OK CD-R reading: OK (writing untested) Music CD: OK DVD-R: Sometimes cannot be read. Operation is unstable. Writing untested. DVD (video works, such as movies): Viewable, some DVDs cannot be viewed. BD-R (25GB, for data): NG (Not Good) BD (video works, such as movies): NG. The Blu-ray function is broken. Keyboard: OK Touchpad: OK Mouse: OK USB (Type A) ports: All 5 ports OK HDMI port: OK MiniD-Sub15pin: OK SD card slot: OK Wired LAN: OK Built-in Wi-Fi: OK Wi-Fi switch: OK Volume control dial: OK Microphone input jack: Not checked Headphone (audio output jack): OK From a 100% battery state, it was possible to operate on battery power for about 1 hour. There is dirt on the top panel. Included items: Power (AC) adapter Thank you for your consideration.