I see that about every hour, I get this "Error" event
Description says :
svchost (4904,D,23) SRUJet: Base de données C:\Windows\system32\SRU\SRUDB.dat : l’index UserIdTimeStamp de la table {DA73FB89-2BEA-4DDC-86B8-6E048C6DA477} est endommagé (0).
Which roughly translate to
svchost (4904,D,23)...