Clean install is over 120gb


crabhunter

New member
Local time
11:12 PM
Posts
4
OS
Windows 11
Hi everyone, I've recently bought a new laptop. It's an Acer Swift X 14 and it came with Windows 11 Home.
I much prefer a clean install of Windows, so I went about making some space on the hard drive, created a partition, and did a clean install of Windows 11 Pro.
For some reason it's taking up about 125gb of hard drive space.
I've downloaded the iso again, created the installer again, which is about 10gb with the added drivers I need, and done about three clean installs now. How, and why, is the finished installation so big?
Mike.
 
Windows Build/Version
Windows 11 Pro 23H2

My Computer

System One

  • OS
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    Acer
It depends on how you perform the clean installation, did you delete all partitions and clean installed Windows 11 on unallocated space?
 

My Computer

System One

  • 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
It depends on how you perform the clean installation, did you delete all partitions and clean installed Windows 11 on unallocated space?
I started by shrinking my Windows partition and creating a new partition which I formatted. I then booted off the installer and installed onto that new partition. Each time I've re-installed, I've formatted the partition before I've installed it.
Mike.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    Acer
Just try to install Windows 11 on unallocated space, Windows 11 will format and partition the unallocated space for its partitions.

Also delete temporary files on your currently installed Windows 11 use Storage Sense to see deleting temporary files will reduce size of Windows 11 you have installed on hard drive.
 

My Computer

System One

  • 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
Just try to install Windows 11 on unallocated space, Windows 11 will format and partition the unallocated space for its partitions.

Also delete temporary files on your currently installed Windows 11 use Storage Sense to see deleting temporary files will reduce size of Windows 11 you have installed on hard drive.
OK, I'll try leaving unallocated space. Why would deleting temp files on my Windows Home install help?
Mike.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    Acer
OK, I'll try leaving unallocated space. Why would deleting temp files on my Windows Home install help?
Mike.
The Windows 11 installation files will take huge space, so deleting the temporary files will help gain disk space.
 

My Computer

System One

  • 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
 

My Computer

System One

  • 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
As a reference: for me, a clean install (blanked 500gb NVME drive, fresh and unmodified ISO from Microsoft) even with all my commonly used apps and MS Office 365 installed (no games or anything that doesn't need to be installed) takes up 55.5gb.
 

My Computer

System One

  • OS
    Windows 11 Pro 23H2 (22631.3155)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homebuild
    CPU
    AMD Ryzen 2700
    Motherboard
    ASRock B450 m/ac
    Memory
    32gb Crucial DDR4-3200
    Graphics Card(s)
    nVidia GTX 2600 - 6gb
    Sound Card
    Sound BlasterX G6
    Other Info
    QNAP TS-469 Pro NAS

My Computers

System One System Two

  • OS
    Win11 All /Debian/Arch
    Computer type
    Laptop
    Manufacturer/Model
    ASUSTeK COMPUTER INC. TUF Gaming FX705GM
    CPU
    2.20 gigahertz Intel i7-8750H Hyper-threaded 12 cores
    Motherboard
    ASUSTeK COMPUTER INC. FX705GM 1.0
    Memory
    24428 Megabytes
    Graphics Card(s)
    Intel(R) UHD Graphics 630 / NVIDIA GeForce GTX 1060
    Sound Card
    Intel(R) Display Audio / Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (17.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9
    Hard Drives
    2 SSD SATA/NVM Express 1.3
    WDS500G2B0A-00SM50 500.1 GB
    WDCSDAPNUW-1002 256 GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & ADSL Bouygues -fr
    Browser
    Edge Canary- Firefox Nightly
    Antivirus
    Windows Defender
    Other Info
    VMs of Windows 11 stable/Beta/Dev/Canary
    VM of XeroLinux- Arch based & Debian 12
  • Operating System
    Windows 11 Insider Canary
    Computer type
    Laptop
    Manufacturer/Model
    ASUS X751BP
    CPU
    AMD Dual Core A6-9220
    Motherboard
    ASUS
    Memory
    8 GB
    Graphics card(s)
    AMD Radeon R5 M420
    Sound Card
    Realtek
    Monitor(s) Displays
    17.3
    Screen Resolution
    1600X900 16:9
    Hard Drives
    1TB 5400RPM
Well, I've made some progress. I made another usb installer but this time with only two additional drivers, one for IO to get the track pad working and a driver for the hard drive. This install is only taking up 39gb at present, but I have to do it again this time adding the wi-fi drivers as I cannot complete setup. I'm hoping the finished size will not increase after completing setup. I will then have to try and find out which driver was causing the issue.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    Acer
I started by shrinking my Windows partition and creating a new partition which I formatted. I then booted off the installer and installed onto that new partition. Each time I've re-installed, I've formatted the partition before I've installed it.
There's probably nothing wrong with your drivers or your bootable media, but how you did the clean install
You should have imaged your OEM installation and done clean install following the tutorial. Don't deviate from it. Windows needs to create it's own partitions during install.
It sounds to me like you now have 2 installation of windows on the drive and your bootloader is probably now on the wrong partition. Can't say for sure without a screenshot of disk management. If that be so, when you delete the OEM partitions your new install will not boot.
Clean Install Windows 11 Tutorial
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 22631.3447
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 7080
    CPU
    i9-10900 10 core 20 threads
    Motherboard
    DELL 0J37VM
    Memory
    32 gb
    Graphics Card(s)
    none-Intel UHD Graphics 630
    Sound Card
    Integrated Realtek
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    1tb Solidigm m.2 +256gb ssd+512 gb usb m.2 sata
    PSU
    500w
    Case
    MT
    Cooling
    Dell Premium
    Keyboard
    Logitech wired
    Mouse
    Logitech wireless
    Internet Speed
    so slow I'm too embarrassed to tell
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
  • Operating System
    Windows 10 Pro 22H2 19045.3930
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Optiplex 9020
    CPU
    i7-4770
    Memory
    24 gb
    Monitor(s) Displays
    Benq 27
    Screen Resolution
    2560x1440
    Hard Drives
    256 gb Toshiba BG4 M.2 NVE SSB and 1 tb hdd
    PSU
    500w
    Case
    MT
    Cooling
    Dell factory
    Mouse
    Logitech wireless
    Keyboard
    Logitech wired
    Internet Speed
    still not telling
    Browser
    Firefox
    Antivirus
    Defender+MWB Premium
Glad to see you are making progress. In the background, I installed Windows 11 Pro 23H2 on a VM and I allocated a 60GB hard drive to it and clean installed.

My install used just around 20GB of space, 21,266,649,088 bytes to be exact.
1707928655197.png

I then went out and downloaded Treesizefree, got the zip version of the application and unzipped it. This is a report showing my space usage.

1707928894974.png

Edit: Went back to my VM, ran Windows updates and got everything available, rebooted a few times and this is where I am sitting now.

1707930027019.png

1707930090977.png
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink SEI8
    CPU
    Intel Core i5-8279u
    Motherboard
    AZW SEI
    Memory
    32GB DDR4 2666Mhz
    Graphics Card(s)
    Intel Iris Plus 655
    Sound Card
    Intel SST
    Monitor(s) Displays
    Asus ProArt PA278QV
    Screen Resolution
    2560x1440
    Hard Drives
    512GB NVMe
    PSU
    NA
    Case
    NA
    Cooling
    NA
    Keyboard
    NA
    Mouse
    NA
    Internet Speed
    500/50
    Browser
    Edge
    Antivirus
    Defender
    Other Info
    Mini PC used for testing Windows 11.
  • Operating System
    Windows 10 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Ryzen 9 5900x
    Motherboard
    Asus Rog Strix X570-E Gaming
    Memory
    64GB DDR4-3600
    Graphics card(s)
    EVGA GeForce 3080 FT3 Ultra
    Sound Card
    Onboard
    Monitor(s) Displays
    ASUS TUF Gaming VG27AQ. ASUS ProArt Display PA278QV 27” WQHD
    Screen Resolution
    2560x1440
    Hard Drives
    2TB WD SN850 PCI-E Gen 4 NVMe
    2TB Sandisk Ultra 2.5" SATA SSD
    PSU
    Seasonic Focus 850
    Case
    Fractal Meshify S2 in White
    Cooling
    Dark Rock Pro CPU cooler, 3 x 140mm case fans
    Mouse
    Logitech G9 Laser Mouse
    Keyboard
    Corsiar K65 RGB Lux
    Internet Speed
    500/50
    Browser
    Chrome
    Antivirus
    Defender.
You didn't mention how you're adding the driver files, but don't import from the extracted NVIDIA folder. Load a specific driver instance (*.inf) which matches your graphics model.

Of course, if you never installed the system before -- you can't see what the driver .inf filename is from Device Manager. So you need to have a live system to know, before re-imaging it.

By default, when DISM (or a DISM-based tool) imports drivers from a folder, it scans all *.inf files underneath and adds them to the image's DriverStore. The problem is NVIDIA's core drivers aren't that huge, but the included graphics libraries are massive. And when DISM detects the multiple INF files, it assumes they're all each separate devices and duplicates the shared graphics libraries. Now your DriverStore is bloated to 40 GB of duplicated driver files.

The solution is to have DISM add just the single INF file, instead of scanning the parent folder. DriverStore grows by an expected 1-1.5 GB.
 

My Computer

System One

  • OS
    Windows 7
also, depending upon the amount of RAM you have and your configuration, you may have the following 3 files eating up space on the root of your C drive.

in my case, on my VM that I allocated 8,192MB of RAM, i see the following.

hiberfil.sys (I don't have one)
pagefile.sys (mine is 1.93GB)
swapfile.sys (mine is 256MB)
 

My Computers

System One System Two

  • OS
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Beelink SEI8
    CPU
    Intel Core i5-8279u
    Motherboard
    AZW SEI
    Memory
    32GB DDR4 2666Mhz
    Graphics Card(s)
    Intel Iris Plus 655
    Sound Card
    Intel SST
    Monitor(s) Displays
    Asus ProArt PA278QV
    Screen Resolution
    2560x1440
    Hard Drives
    512GB NVMe
    PSU
    NA
    Case
    NA
    Cooling
    NA
    Keyboard
    NA
    Mouse
    NA
    Internet Speed
    500/50
    Browser
    Edge
    Antivirus
    Defender
    Other Info
    Mini PC used for testing Windows 11.
  • Operating System
    Windows 10 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Ryzen 9 5900x
    Motherboard
    Asus Rog Strix X570-E Gaming
    Memory
    64GB DDR4-3600
    Graphics card(s)
    EVGA GeForce 3080 FT3 Ultra
    Sound Card
    Onboard
    Monitor(s) Displays
    ASUS TUF Gaming VG27AQ. ASUS ProArt Display PA278QV 27” WQHD
    Screen Resolution
    2560x1440
    Hard Drives
    2TB WD SN850 PCI-E Gen 4 NVMe
    2TB Sandisk Ultra 2.5" SATA SSD
    PSU
    Seasonic Focus 850
    Case
    Fractal Meshify S2 in White
    Cooling
    Dark Rock Pro CPU cooler, 3 x 140mm case fans
    Mouse
    Logitech G9 Laser Mouse
    Keyboard
    Corsiar K65 RGB Lux
    Internet Speed
    500/50
    Browser
    Chrome
    Antivirus
    Defender.

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