Computers are very expensive now, so people looking to save money might consider buying second-hand, and refurbished laptops are also an option many people consider. However, recently a Reddit user overseas shared a painful experience: his friend bought a refurbished Lenovo laptop, and after leaving it in a drawer for about a month, it could no longer be used normally. When he removed the bottom cover, he found it full of what appeared to be insect remains. Not only the motherboard, but also around the cooling fan and memory, there were large amounts of residue. It really looked a bit disgusting.

Image source: Reddit via Wccftech
A refurbished laptop failed after just one month in a drawer, and only when it was taken apart was it discovered that the motherboard and fan were covered with what appeared to be insect shells.
According to tech media Wccftech According to a report, a Reddit user u/mace1191 shared on r/techsupportgore that his friend originally bought this refurbished Lenovo laptop from a store that claimed to be reputable. After buying it, the friend did not use it right away but put it in a drawer. According to mace1191, after about a month, when the friend tried to take it out to use it one weekend, they discovered that the laptop could no longer function properly.
Since it wouldn’t boot, his friend decided to take off the bottom cover to see what the problem was. But once it was opened, the problem turned out to be much more serious than expected: the inside was scattered with a large amount of dark debris that looked like insect shells, eggs, or remains—and not just a few isolated pieces, but spread all over. For example, a huge area of the motherboard was scattered with debris, even in the gaps between components; a considerable amount of residue had also accumulated around the cooling fan and near the exhaust vent; and the inside of the removed bottom cover was likewise covered with a lot of debris:

Image source: Reddit
His friend even tried turning the cooling fan by hand, and the hard shell debris inside the fan got crushed by the blades, making a “clack-clack” cracking sound. Just imagining that sound is enough to make you feel uncomfortable all over.
However, we can’t yet conclude that this debris is what caused the laptop to break. But judging from where the residue appeared, the odds are indeed high—after all, the cooling fan draws outside air in to cool the CPU, and if it gets jammed or blocked by a foreign object, at best the fan won’t spin and temperatures will spike, and at worst it will trigger overheating protection and shut down directly.
After the photos came to light, many internet users wondered exactly when these bugs got in. mace1191 did not elaborate.
The foreign outlet Wccftech proposed two possibilities. The first is that the refurbisher never properly cleaned or inspected the inside of the laptop.
In a normal refurbishment process, the seller will open up the chassis to inspect internal components, clean out dust, check for signs of repairs left by previous users, and then run hardware tests before putting it back on sale. Wccftech believes that if there is already this much debris inside, the refurbishment process was likely done quite sloppily, or even skipped entirely, because it would take months of neglect for a laptop to accumulate such an extreme condition.

AI-generated schematic diagram
The second possibility is that it happened after the laptop was brought home. A drawer is a dark, warm, enclosed space—a comfortable place for bugs to settle. If the laptop was left inside untouched for a month or two, it’s not impossible that insects got in through the cooling vents or gaps in the casing and built a nest.
So, even when buying from a reputable store, you should spend more time inspecting the item when it arrives—for example, check the exterior and ventilation holes for dust buildup or foreign objects, and smell it for musty, burnt, or other unusual odors. You should also test it soon after receiving it, rather than waiting a month to test it as in this case.
Source: KOCPC Chinese