Hey guys, a customer has a PC with a 1TB HDD that won't allow any free space on the drive. Once you free up space by removing something, it shoots straight back to 0.
For example, the customer deleted 900MB worth of contents from the recycling bin at once. After I cleared the recycling bin, space showed 800MB free, 53MB free, 0MB free (he must've been refreshing, but not sure). After that, I booted in safe mode to see if the drive still showed empty. Safe mode showed the drive to still have 900MB free, so I ruled out the HDD being bad, but not completely.
The customer advised he was nowhere near max space on the drive, so I checked what's taking up the most space. Windows file showed to be 840GB....so I believe it's some sort of virus deep, that's filling up the drive space.
Malware Bytes found nothing, unfortunately SeaTools had an error with a certain .dll and wouldn't run (flag for system file issues). PC didn't have any new suspicious programs installed, no suspicious processes, but startup showed "LchDrvKey.exe" in startup, which could be a virus? Haven't finished researching it yet. Troubleshooting I did was through a remote connection, so I didn't have time to run other possible good programs, such as ComboFix, etc.
I apologize if this is a common virus or issue that I should've known of, but not finding much on Google with these specific symptoms. Does anyone have any suggestions on what this may be? Or ideas on where I should look for a solution? Thanks!