Windows Gurus -- Why does this process always take a long time ?


jimbo45

jimbo45

Well-known member
Pro User
VIP
Local time
3:06 PM
Posts
5,958
Location
Hafnarfjörður IS
OS
Windows XP,11 Linux Fedora Rawhide pre-release 46
Hi folks
Using UUPDUMP to create the Windows install ISO -- why does the procees "Unmounting Image" seem to take an in-ordinate amount of time comaprated to all the other things the iso creation process from UUPDUMP does.

What's it actually doing (4 GAWD's SAKE).

Screenshot 2024-03-02 135229.png

Any Windows Gurus out there who can enlighten me.

Cheers
jmbo
 

My Computer My Computer

At a glance

Windows XP,11 Linux Fedora Rawhide pre-releas...2 X Intel i7
OS
Windows XP,11 Linux Fedora Rawhide pre-release 46
Computer type
PC/Desktop
CPU
2 X Intel i7
Screen Resolution
4KUHD X 2
The speed depends on image size and modifications and storage speed where IOS image created.
 

My Computer My Computer

At a glance

Windows 11AMD Ryzen 7 5700GMicron Technology DDR4-3200 16GBNVIDIA GeForce RTX 3060
OS
Windows 11
Computer type
PC/Desktop
Manufacturer/Model
HP Pavilion
CPU
AMD Ryzen 7 5700G
Motherboard
Erica6
Memory
Micron Technology DDR4-3200 16GB
Graphics Card(s)
NVIDIA GeForce RTX 3060
Sound Card
Realtek ALC671
Monitor(s) Displays
Samsung SyncMaster U28E590
Screen Resolution
3840 x 2160
Hard Drives
SAMSUNG MZVLQ1T0HALB-000H1
Windows imaging is like opening a jar where you pour out all the jelly on the table, once done you have to scrape all the jelly from the table back into the jar and screw the lid back on. That's why it's slow.

EDIT: Maybe a better analogy is to use pearls where you put them back in a specific order.
 

My Computers My Computers

System One System Two Other systems

  • At a glance

    Win 11 Pro 25H2 26200.9445 / Linux Mint 22.3Ryzen 7 2700U Pro32GBiGPU Vega 10
    OS
    Win 11 Pro 25H2 26200.9445 / Linux Mint 22.3
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    125W(Dock)/65W(Travel Adapter)
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled

  • At a glance

    Win 11 Pro 25H2 26200.9539(RP)i7-7700k @4.8GHz32GB 2x16GB 2133MHz CL15EVGA GTX1080Ti FTW 11GB
    Operating System
    Win 11 Pro 25H2 26200.9539(RP)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Keyboard
    Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    1/1Gbit
    Browser
    Firefox
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
  • Asus U46SV (laptop), i5-2410M, 8GB RAM, 500GB SSD, 750GB HDD, Windows 10. (used as a local Minecraft server and data dump)
My Internet connection is pretty good and I have lots of storage space. I'm downloading the latest Release Preview Win 11 and it takes like 4-5 hours.
Guess its a lot of jelly all over the table. Must be a faster way.....
 

My Computer My Computer

At a glance

Win 11 Insider Release Preview and Beta chann...i5 Core 7200U@2.50GHz (Unsupported for Win 11)12GBGeneric PnP Monitor (1920x1080@60Hz) Intel HD...
OS
Win 11 Insider Release Preview and Beta channels.
Computer type
Laptop
Manufacturer/Model
HP ENVY Bought: March 2017
CPU
i5 Core 7200U@2.50GHz (Unsupported for Win 11)
Motherboard
HP 81AD (U3E1)
Memory
12GB
Graphics Card(s)
Generic PnP Monitor (1920x1080@60Hz) Intel HD Graphics 620 (HP)
Sound Card
Conexant ISST audio
Monitor(s) Displays
Generic PnP Monitor
Screen Resolution
1536x864 pixels
Hard Drives
HGST HTS721010A9E630
PSU
Well...PSU you too!! What's this mean?
Case
HP ENVY SILVER
Cooling
A fan.
Keyboard
USA
Mouse
Logitec Anywhere 2
Internet Speed
Good enough for me! Fast!
Browser
Edge/Waterfox
Antivirus
Windows Defender
Other Info
No 'mo.
jimbo45 said:
Hi folks
Using UUPDUMP to create the Windows install ISO -- why does the procees "Unmounting Image" seem to take an in-ordinate amount of time comaprated to all the other things the iso creation process from UUPDUMP does.

What's it actually doing (4 GAWD's SAKE).
Click to expand...
Unmounting an image and committing changes requires DISM to create a new WIM file. It's takes forever because a WIM file is always a compressed file (technically there is an uncompressed format, but nobody uses it).

There's several operations going on at the same time:
  • Preservation of mount folder hard links (to prevent file duplication).
  • When there's multiple images in the WIM, de-duplication is happening (which saves a lot of room on multi-edition images based on the same Windows release).
  • Archive compression using LZX format.
  • If you have real-time file scanning enabled, and don't turn it off or exclude UUP dump's folders, then it's always rechecking the enormous work-in-progress image file.
The only thing worse than unmounting is converting WIM->ESD.
 

My Computer My Computer

At a glance

Windows 7
OS
Windows 7
You must log in or register to reply here.

Similar threads

Add Optional features why does this take so long
Replies
6
Views
14K
spapakons
spapakons
the search engine does not show the image and widgets take a long time to refresh on the taskbar
Replies
1
Views
921
DGN69
D

Latest Support Threads

Latest Tutorials

Back
Top Bottom