Despite constant warnings from the community I have been using WUBI right from version 10.04 onwards till version 14.04 on my laptops to my uttermost satisfaction! I also run all security and other updates regularly. Two days ago, I ran the update on my Lenovo Thinkpad 420W as usual without too much looking what it was.
When rebooting, UBUNTU showed a black screen and I could neither boot into Windows 7. I suppose that it must have to do with the Nvidia driver (and accessory programs) that were in the most recent security update. Since Lenovo has the Primus system that includes a low-end Intel graphics and a high-end Nvidia graphics that are switchable, I suppose that the update must have changed some setting of the graphics. I do not know whether the boot manager is involved in this. After fumbling around in the BIOS trying several settings for the graphics I am now back to a functioning UBUNTU but Windows does still not boot. I have tried all of the recovery options for Windows but all just run for several minutes and then restart into the same corrupted Windows system as before. I have not the slightest idea how a change in WUBI can affect Windows. Help is greatly appreciated!
thanks, D-E
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