The full message is "The Windows Boot Manager is incompatible with this system. No physical memory is available at the location required for the Windows Boot Manager. The system can not continue.

BOOTMGR image is corrupt. The system cannot boot. The file is possibly corrupt. The file header checksum does not match the computed checksum." but the weird thing is nothing has been changed in my computer and it has worked fine for the last few months, plz help! and i would like if possible to fix the corrupt not reinstall cuse thats a lot of important programs to reinstall