Sounds odd for a HD issue but not impossible. In addition to running an error check, I’d look at the event log for any disk or file system related errors. Generally in the case of a disk problem I’d expect symptoms like noise, Windows throwing errors as it tried to read a bad sector or taking a long time to read a file due to retries. Could be some corruption if the Master File Table I suppose – if so chkdsk will hopefully sort it out. If you reinstalled them and the stay put might be the faeries ÷)

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