This required me to reduce the size of my Mac partition, something which Disk Utility won't allow. BootCamp Assistant limits me to 40Gb so I was planning to try Partition Wizard from Minitools. I have two partitions, with High Sierra on one and BootCamp Windows 7 SP1 64bit on the other.Īll was good (W7 installed and running fine) except that I needed more space on my BootCamp partition. Window 7 Bootcamp won't start and doesn't appear in boot options despite appearing in Startup Disk Hi, Outputs to commonly recommended commands: Do I keep pushing with testdisk or try another method? I'd be grateful for any advice on where to go next. I then tried testdisk and got to this stage: then hit and error when I pressed p: That bought the partition back into disk utility but greyed out: Gpt add -i 3 -b xxxxx -s yyyyyyyy -t windows /dev/disk0 The details in that post matched my situation so I followed the instruction in Internet Recovery mode: I have been trying to follow some of the threads answered by Loner T such. The partition also wasn't visible in the Disk Utility.

It doesn't show up in startup disk or when I hold down alt/option during boot. MacOS updated to Catalina (10.15.4) and now I can't boot into Windows. Bootcamp partition lost after update to Catalina I have a MacBook Air (2015) with Bootcamp which I use to run windows.

Testdisk 7.2 64 bit