Hi
Redhood wrote:But This time it DID NOT SHOW HDD
HDD : NONE
Then according to
this, the drive may need replacing.
4. If the HDD is not detected in the BIOS then a hardware failure has occurred and the HDD may need to be replaced.
You may be able to perform some diagnostics on the HDD using the installed
VAIO Care software.
VAIO Care Version 6 Helpful InformationOtherwise it may be best to either return to Sony support or start a new topic on a forum that specialises in hardware issues (If you decide on the latter, include a link to this thread).
Not a malware issueAt this stage your machine looks to be clean of malware, so the continued problems you are experiencing are not likely to be malware related. As this forum specializes in malware removal I think the best and fastest solution for you is to post on a hardware troubleshooting forum.
These sites have a variety of experts, that are better equipped to investigate and resolve these kinds of issues.
Below are some recommended sites, registration is free, it only takes a few minutes.
GeeksToGo - Hardware, Components and PeripheralsWhatTheTech - General HardwareI'm sorry that I could not be of more help to you, and I wish you the best of luck with solving your computer problems.I'd be grateful if you could reply to this post so that I know you have read it and, if you've no other questions, the thread can be closed.