I know wimb is on the way to make a list to exclude from reduction of SysWOW64 all required to boot Office and it will be the best solution.
As I have tested LibreOffice several times when booting Linux Mint (my favorite distro), and found it usefull, and not so big as recent MS Office versions.
In the mean time since I already downloaded LibreOffice Portable Fresh and extracted/installed it to a partition on the HD, and found it also don't run on a full Win_Reduce_Trusted environment.
Then in conclusion LibreOffice Portable Fresh don't run fine on a Win_Reduce_Trusted environment.
I decided to copy back the full SysWOW64 folder from the respective install.wim image index, for testing pourposes.
By the way, contrary to antonino61 statements, my opinion is:
It is a good practice to keep our Registry intact, this allows us to copy back something chopped, when we latter notice we need it.
Belive me when I say this was a big space sacrifice, reduced version of this folder was 200 MB and full version is 920 MB (both uncompressed), the 10x64-2004-LZX-R.vhd was 2.2 GB and 1.56 GB used size, and this of course forced me to make a new VHD, and I decided to deploy on my expandable VHD (used for first installations) the backup image and made required changes, finally I ended making a new 2.3 GB VHD with 1.97 GB used space.
Well, to make the history short, I partitioned and formated a new 32 GB USB device (please read 28.8 + GB) using USB_FORMAT by wimb:
And deleted the second partition to make a new 128 MB NTFS, latter expanded to 19 GB (to keep $MFT the closer possible to the begining of the partition and out of the way), and used same trick when creating third partition, this partition may be unnecesary, but the idea was keep all Portables and some other programs separate on another small drive and not as a stone on the way as the $MFT used to be. Then I can make all changes/additions I want here and don't care.
Finall layout is:
- First Primary Active partition FAT-32 8 GB U-BOOT
- Second Primary partition NTFS 19 GB U-NTFS
- Third Primary partition NTFS 1.9 GB (aprox. size) Programs
Then when running the tests of new 2.3 GB VHD (still located on HD) just plugged the USB device and re-assigned the drive letters to my convenience:
- U-BOOT drive U
- U-NTFS drive V
- Programs drive Y (to be consistent with Win10XPE).
When finally the VHD was copied to U-NTFS (after running CCleaner) all USB drive letter were kept the same
Programs added so far:
Applications (Aplicaciones) folder with 43 portables programs, is Compact LZX compressed, and folder was applied directly Compact LZX compressed by wimlib-clc (not fragmented). 437 MB compresed to 237 MB
LibreOfficePortable do not run fine when Compact LZX compressed, but it runs very fine from an (old version) NTFS compressed folder. Also this folder was applied by wimlib-clc, just after applied it starts compressing automatically to comply with the attibutes it had when captured by wimlib-clc, files into this folder always ends very highly fragmented, I usually defragment the folder using WinContig. 521 MB compressed to 353 MB
Attached some pictures when Rambooting the full size 2.3 GB 10x64-2004-LZXR.vhd
By the way I noticed when running from a full VHD on RAM it is possible to attach/mount the same VHD, there is no disk identifier collision, and add/remove all we want to it, like add some important info to its Documents folder, cleanning garbage acumulated (after Filedisk booted several times) re-runing the Win_Reduce_Trusted program by wimb with appropriate options from time to time, to keep it the closer possible to when it was first installed, or run WOF_Compress by wimb if we added/installed a new program when Filebooting and want to keep the VHD used space as optimized as possible.