As you are not able to bypass the black screen, the data saved in the hard drive becomes inaccessible. In spite of trying to reboot the system various times, you would not be able to boot the Windows.

Basically, the booting process of Windows 7 operating system involves few vital steps, which requires BIOS, MBR, boot sector, and NTLDR file to work systematically. The process gets stopped if any of the above components are corrupted or damaged due to improper system shutdown, installing an incompatible device driver, and virus infection.

To resolve the black screen issue caused due to improper shutdown of the system and to access the Windows 7-based hard drive data, you would need to format your system. In order to recover your lost data you would go for advanced data recovery software that uses advanced recovery algorithms to salvage the data from such corrupted hard drives.

Remo Recover (Windows) is an assortment of data recovery components designed to recover deleted / lost files and folders, photos, RAW images, music & video files from crashed, re-partitioned, accidentally formatted partitions & drives. This Remo recovery software is a read only application that is designed for Windows 7, Vista, XP, 2003 or Windows 2008.

This windows recovery tool serves as self-explanatory tools, as they do not require any technical understanding to perform recovery.