It's in the desert somewhere and it has its windows and landing gear and doors covered. Why is it that? Of course, it's not in service anymore... Source
The aircraft is in storage. The Boeing 777-212(ER) seems to operated by Singapore Airlines under lease from Pembroke before being withdrawn from use in Dec 2014. After that, the aircraft is under storage at Southern California Logistics Airport.
The windows are covered in aluminium foil for storage; however, the engines appear to be still there (which will usually be removed), which indicates that the storage was planned for only a short time.
Currently that airplane is in storage per planespotters.net. The reason why it is stored in the desert is because the environment would not cause some structural damage to the airframe. All those doors and windows are covered to keep animals, dust, and even sunlight out so that they would not damage the airframe either.
The aircraft was previously operated by Singapore Airlines but has been returned to Pembroke Leasing. It is probably in storage because it is not economical to sell or lease at the present time.
Here are some possible reasons why it may be uneconomical to sell or lease:
1) excessive supply of aircraft for market conditions
2) cabin or seating configuration
3) excessive hours on the aircraft, engines or components
4) age of the aircraft (14 years)