I recently had my acer d250 start blue screening upon boot and unable to repair. Therefore I bought a usb to sata cable to see if I can re format it. However upon connecting it to my other laptop, it shows up as two partition SYSTEM RESERVED (F and Local Disk (G. Note: these are the partition of the same external drive. F: has 100mb where 68 is used and G: shows up as 0kb. I can neither format them or even access disk management when I have these plugged in. Also it lags and make other computer operation on my computer behave differently. For example it makes all my installs time out and im unable to open some application. Upon restart without it plugged in it doesn't affect anything. Anything I try in cmd prompt such as chkdsk or reformatting it doesn't work, neither does disklist. This is a 250gb Toshiba laptop hard drive ~ 3-4 years old. I cant format these, theyre are inaccessible and unrecognized by the system when I try to change its letter and I believe its corrupted any help would be appreciated and if u need any screenshot I can provide.