O alto número de Contagem do setor pendente atual está causando um desempenho lento e terrível.
Current Pending Sector Count S.M.A.R.T. parameter is a critical parameter and indicates the current count of unstable sectors (waiting for remapping). The raw value of this attribute indicates the total number of sectors waiting for remapping. Later, when some of these sectors are read successfully, the value is decreased. If errors still occur when reading some sector, the hard drive will try to restore the data, transfer it to the reserved disk area (spare area) and mark this sector as remapped.
This is a critical parameter. Degradation of this parameter may indicate imminent drive failure. Urgent data backup and hardware replacement is recommended.
Portanto, faça backup do seu Windows e substitua o HDD por um novo. Considere comprar um SSD para obter um grande aumento de desempenho em relação a um disco rígido tradicional.