Description of working with the program:

Physical Disk
After starting the BOOTICE, select the Separation Disk - the physical disk with which we will work. It can be a HDD or a USB flash drive.
For each physical disk, the following functions are available:
Refresh - Refresh, that is, read all data again
Process MBR - Working with MBR (Master Boot Record)
Process PBR - Working with PBR (Partition Boot Record)
Parts Manage - Working with disk partitions
View Sector - View disk sectors
Process MBR - Working with MBR (Master Boot Record)
MBR is the main boot record. The MBR boot code is the first program running on any PC after the BIOS. The task of the standard MBR code is to identify the active primary partition of this disk and transfer control to the PBR of the active partition. The MBR code is universal and does not depend on the type of file system, and with some stretch we can say that it does not even depend on the type of OS. After selecting Process MBR, you can see the current type of MBR boot code (that is, the MBR code that exists now) on the selected physical disk in the Current MBR Type field. The Install/Config, Backup MBR and Restore MBR functions are available for Process MBR.
Install/Config - Install/Configure MBR
Here you can install the required MBR boot code on the disk. The partition table is not affected. In BOOTICE v0.9.2011.0512, it is possible to install the boot code MBR WEE, GRUB4DOS, Ultra USB-HDD+, Ultra USB-ZIP+, Plop Boot Manager, Windows NT 5.x (in BootIt, the analog command Std_MBR in MBR View, in WinXP fixmbr [device_name] in the recovery console), Windows NT 6.x (in BootIt, the similar command Win7_MBR in MBR View, in Win7 bootrec /fixmbr in the recovery console). Which versions of MBR WEE, GRUB4DOS and Plop your version of BOOTICE works with is written next to each corresponding item.
I should note that there are a great many types of MBR boot codes for different services (for example, for disk encryption/decryption, bootable, specialized for backup/recovery, OEM manufacturers, etc.). BUT. 98% of the PC has a standard boot code from XP/2003 or Vista/7/2008. And Windows ALWAYS overwrites the MBR boot code during its installation.
Backup MBR - Archiving MBR in the form .bin file (optional from 1 to 255 sectors).
The standard Windows MBR occupies one sector - 512 bytes. This includes both the MBR boot code and the main partition table. Therefore, a backup of one disk is not applicable for another disk - they have different partition tables. A non-standard MBR can occupy up to 63 sectors.
Restore MBR - Restore MBR from .bin file
Process PBR - Working with PBR (Partition Boot Record)
PBR (Partition Boot Record) in direct translation from English means the boot record of the partition. In English-language literature, there is also a similar concept of VBR (Volume Boot Recoed). PBR/VBR in Russian literature is usually called the boot sector. Although this is not quite right. Since PBR usually occupies more than one sector. Therefore, in the future I will use the term PBR boot code. The PBR boot code gets control after the MBR boot code and it is different for different file systems. The task of the PBR code is to transfer control to the OS loader. Therefore, it is "tied" to the loader (although this can be easily changed - shown below). That is, different PBR is needed for different loaders.
After selecting Process PBR, you need to select the desired Separation Partition. And you will see the current type of PBR boot code (that is, the PBR code that exists now for the selected partition) in the Current PBR Type field
The Install/Config, Backup PBR and Restore PBR functions are available for Process PBR.
BOOTICE can install MS-DOS PBR, GRUB4DOS, NTLDR boot code on any partition (there is an incomplete analogue in WinXP - the fixboot command in the recovery console), BOOTMGR (there is an incomplete analogue in Win7 - the bootrec /fixboot command in the recovery console), SYSLINUX. Which versions of PBR GRUB4DOS and SYSLINUX your version of BOOTICE works with is written next to each corresponding item.
Parts Manage - Working with disk partitions
The following operations are available:
Backup Partition Table - Archiving the disk partition table to a .dpt file
Restore Partition Table - Restore a disk partition table from a .dpt file
Hide - Hide the partition at the MBR level
Unhide - Open a partition at the MBR level
Change ID - Allows you to change the partition type identifier (partition file system type)
Assign Drive Letter - Assign a letter to a partition in the current Windows OS
Remove Drive Letter - Delete a partition letter in the current Windows OS
Activate - Make this section active
Format this part - Format the section
Reformat USB disk - Reformat a USB disk (for flash drives)
You can also notice that in Parts Manage you can see the name of the disk model, the volume and its geometry - the total number of LBA sectors, With/H/S and the size of the sector. For each partition, you can see the type of file system, the number of the starting (initial) LBA sector and their number in each partition. Hiding and opening partitions, assigning an activity label to a partition, and the operation of changing the partition type identifier are similar to the same operations in BootIt. And BOOTICE allows you to do these operations directly from Windows (sometimes it is useful, for example, to open a hidden partition, you do not need an overload in the boot).
Sector Edit- View disk sectors
Clicking the left mouse button 2 times on any section in Parts Manage opens the Sector View window starting from the sector of the beginning of the section (with PBR).
Disk Image
It is necessary to select Image file - the image of the HDD disk in the format .IMA, .IMG, .VHD, .VHDX or .VMDK. Just like in Physical Disk, you can view/change MBR, PBR and view sectors of the disk image Sector Edit.
BCD Edit
Windows Vista/7/2008 BCD Editor. A similar editor with less functionality is available in the BootIt booth.
Utilities
Start Menu Editor utilities for GRUB4DOS and Disk Filling.
Disk Filling allows you to fill any partition or an entire disk with a byte 00h, FFh or any arbitrary one. It is convenient to use when zeroing the partition table of a USB flash drive or HDD.
Start Menu Editor for GRUB4DOS allows you to edit the internal menu of the GRLDR file (GRUB4DOS loader).

Features of the program:

BOOTICE will allow you to create backups, as well as restore the MBR boot area and Boot Record partition damaged, for example, by viruses, if we are talking about local disks, as well as USB flash drives. The program will allow you to make a backup and restore boot records. After you have selected the type of boot record, you can create a BIN file, which can then be used as a backup solution.
You can use BOOTICE if you want to delete all data from your hard drive. Please note that this process is not reversible and nothing can be restored after it, so you need to use this opportunity wisely.
BOOTICE works with different boot records, for example SysLinux, Windows, Grub4Dos.

Features:

Frequent program updates with the addition of new functions;
Support for boot records such as Grub4DOS, SysLinux, PLoP Boot Manager and MS NT52/60;
Step-by-step configuration of the future bootable USB flash drive;
Simple interface, intuitive and intuitive.

What's new:

Fix some bug, as you mentioned: the collapse of the installation error EXFAT partition, editing is not supported by the built-in menu GRLDR, BIOS /UEFI mode error of judgment reserved sector error when installing G4D MBR and partition copy BPB, etc. issue;