Install Windows From External Hard Drive |verified| May 2026

In the end, you sit back, watch the “Getting files ready for installation” screen, and realize: an old external hard drive just saved you from hunting for a DVD or an 8 GB flash drive.

Then you use bootsect /nt60 F: (where F: is your external drive) to write the Windows boot code onto it. install windows from external hard drive

First, you open and delete all partitions on the external drive. Then you create a single primary partition, format it as NTFS , and mark it as active (so the computer knows it can boot from it). In the end, you sit back, watch the

You install Windows normally, choosing the internal drive (or even another external drive if you want a portable Windows). The external installation drive stays untouched unless you deliberately format it. Then you create a single primary partition, format