I had an issue with my system I'm not sure is OS related or not. The night after updating to build 10130, I turned my system off. When I woke the next morning attempting to boot in Windows, the system wouldn't even make it to Bios/UEFI (boot loop). After some much PIMA I narrowed it down to being unable to run more than one stick of memory (both sticks work). To solve it I ended up upgrading my MB & CPU. Probably not OS related, just seems odd for a system only 2 years old, nothing had changed (besides the OS update), on a very lite overclock (CPU only) and during a powered/powering down state. Haven't gone back to Win 10 TP since
Anyway, I have now resolved the problem. I used the EasyRE Windows repair utilty (which for a limited time is FREE):
Easy Recovery Essentials | Windows Recovery and Repair CD Downloads
Not expecting any real results, I am happy to report that this great utility repaired the damage (corruption of the MBR by build 10130) and my PC is now up and running again. If you have the same problem, don't forget to stop 10130 from downloading and installing again otherwise the same thing will happen. In fact, I did this as a test, just to make sure that the error had not been caused by my machine rather than Win 10, and sure enough, when 10130 was applied to the machine the problem happened again. So I fixed it again.
When using EasyRE, when it gets to the memory test it performs, it says "Please be patient". It means it - in my case the memory test took 25 mins, and during some of that time the screen went black. So don't worry if nothing appears to happen for a while.
So, in summary, there is a major problem with Build 10130 that is affecting lots of people. Not everybody, true, and it mainly seems to be affecting Lenovo machines (so the opinion is anyway) but I certainly would not install it again.
Many thanks to everybody who has tried to help me on this thread - you have been very kind to give up your time. It is much appreciated.
I shall now mark this thread as "Solved"
Take care everybody!
The EasyRE Windows repair utility looks like an interesting tool - I checked out the demo video and tried to download it using the link you provided. I did not see a limited time free download though, id there a code or something else you used to get it free?
Time limited edition for 10 is at the top of the professional box but it's limited to two days.
Just wanted to point out that I've noticed wonky, unfixed drive behavior in Win10. Nothing reproduceable but in 9841 my NTFS external drive's MBR got curropted (thankfully was able to fix it in a chkdsk in Win.8) and in 10130, couldn't format my USB stick in FAT32....just curropted the key instead. Booted 8.1, formatted fine.
I don't know what's going on, but BACKUP DATA!