Hello. I am having problems with a Toshiba Satellite laptop that I have been asked to look at by a friend as it started to fail to boot into windows around 2 weeks ago apparently. The OS is Windows 7 Professional.
I am able to access the BIOS fine and the hard drive and memory are recognised correctly, the Toshiba boot screen comes up fine, then the starting windows logo appears very briefly before startup repair launches. Every time I try to repair I get the message saying that Windows was unable to repair the problems automatically. I have tried using the Windows installation dvd for the repair attempt also and then same happens. There are no specific error messages indicating what is wrong, however the following information is given.
Root cause found: startup repair has tried several times but still cannot determine the case of the problem.
Problem event name = StartupRepairOffline
Problem signature 01 = 6.1.7600.16385
Problem signature 01 = 6.1.7600.16385
Problem signature 03 = unknown
Problem signature 04 = 21200026
Problem signature 05 = AutoFailover
Problem signature 06 = 18
Problem signature 07 = NoRootCause
OS version = 6.1.7601.2.1.0.256.1
Locale ID = 1033
I then tried the recovery console to restore the system to an earlier restore point, however the list of restore points was very short, and the laptop is approx. 3.5 years old, there were only a handful of restore points listed for points in 2014 even after ticking the 'show more restore point' box. I discussed with the owner who said it's fine to try restoring to one of these points, however towards the end of the restore process the restore failed and advised the restore process could not complete. I tried an alternative restore point and the same happened.
I have since booted into my comodo rescue cd and run a complete scan on the laptop and it returned completely clear with nothing detected - I had internet connection so definitions were up to date also.
I ran memtest and hard drive checking tools and both returned absolutely fine so it doesn't appear to be hardware related either.
I have tried F8 at boot and tried every option available, starting in safe mode, with networking, last known good configuration, and all attempts results in the same where I see the windows log briefly then the repair/recovery launches and fails.
I have used the windows RE cmd prompt to run checkdisk which returns fine with no issues. I have also tried running bootrec as explained on the MS knowledge base article and that failed to make any difference.
I unplugged the drive and connected it to my pc with sata cables and ran a complete avast scan, and malwarebytes scan, and both scan returned with zero detections. I included scans for rootkits.
The drive is recognised in my pc windows explorer fine, and I can browse all files and folders on there no problem and it all has the structure I would expect, so it would appear to be a boot problem and I am starting to wonder if it could be a virus/malware in the MBR possibly? I can see you can get tools that specifically scan the mbr but some actions after the scan can cause you to lose the manufacturers recovery options and would mean a clean basic windows installation instead, which would then need all the relevant drivers etc, but I could do with some advice here as I've not come across an MBR virus/malware before so no idea if this is indeed what the problem is.
The only information I can get as to the last thing done on the laptop before it started doing this was that the owner tried to install either software/drivers for a exercise monitor (you know those wrist bands that hook up to smart phone/pc apps). They had AVG and malwarebytes running on the laptop since they owned it and has been fine with no detections or previous problems of any kind.
Is this an MBR infection and if so can anybody help me out please? Thanks in advance.