compact os do I need it or not


alexhob123

Active member
Member
Local time
5:45 PM
Posts
236
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
hello I have a query I would like to ask i have a 128gb hard drive for c drive and have 57gb left can I use the compact os command to get more space or am I okay with what I have I only just found this out today and is it okay to use
 
Windows Build/Version
26200.8973

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes
hello I have a query I would like to ask i have a 128gb hard drive for c drive and have 57gb left can I use the compact os command to get more space or am I okay with what I have I only just found this out today and is it okay to use

It looks like you would save less than 5GB compacting the OS.
 

My Computer My Computer

At a glance

Windows 11 25H2Broadwell-e 6850K 4.5ghz @1.36v32GB Corsair LPM 3600 C16EVGA RTX 3080Ti FTW
OS
Windows 11 25H2
Computer type
PC/Desktop
Manufacturer/Model
EVGA home brew
CPU
Broadwell-e 6850K 4.5ghz @1.36v
Motherboard
EVGA X99 FTW K
Memory
32GB Corsair LPM 3600 C16
Graphics Card(s)
EVGA RTX 3080Ti FTW
Sound Card
Asus Centurion true 7.1 headset. (5 speakers in each earpeice)
Monitor(s) Displays
LG C4 55"
Screen Resolution
4K 144hz
Hard Drives
Various models of SSDs ~10TB No HDDs installed.
PSU
be quiet! BN516 Straight Power 12-1000w 80 Plus Platinum
Case
Corsair 780T modified to dual 200mm intake fans
Cooling
Corsair H110i
Keyboard
Corsair K95 Platinum
Mouse
Corsair M65 RGB Elite
Internet Speed
50Mbs
I would start by uninstalling any apps you're not using.

Then, run Disk Cleanup and see how your free space is.

I have a 1 TB drive and have only used 48GB.

I keep it pretty clean, and archive old stuff to a removable drive.

Takes less time to scan for malware, and backup as well.
 

My Computer My Computer

At a glance

Windows 11 Pro 25H2
OS
Windows 11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Toshiba
I would start by uninstalling any apps you're not using.

Then, run Disk Cleanup and see how your free space is.

I have a 1 TB drive and have only used 48GB.

I keep it pretty clean, and archive old stuff to a removable drive.

Takes less time to scan for malware, and backup as well.
I mostly install games on my e drive and my SSD drive
 

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes

My Computer My Computer

At a glance

Windows 11 Home x64 Version 25H2 Build 26200....
OS
Windows 11 Home x64 Version 25H2 Build 26200.9168
My gaming/streaming system has two NVME drives:

Main/System: 500gb with 127g used (OS, LibreOffice, and most apps)
Gaming: 2TB with 1.5TB used (Steam, Battle.net, and various games along with mods)

If you can, I would try to get a 500GB drive just for your OS and apps. I have no need to compact my OS drive. I feel that 500GB is about as small as you can work with without having to remove/uninstall. CompactOS won't make a major difference on your system drive.
 

My Computer My Computer

At a glance

Windows 11 Pro 25H2 (26200.9168)AMD Ryzen 7 7800X3D32gb Team Group (T-Force) DDR5-6000Zotac nVidia GeForce RTX 4070 SUPER - 12gb
OS
Windows 11 Pro 25H2 (26200.9168)
Computer type
PC/Desktop
Manufacturer/Model
Pre-built
CPU
AMD Ryzen 7 7800X3D
Motherboard
MSI Pro B650-VC WiFi
Memory
32gb Team Group (T-Force) DDR5-6000
Graphics Card(s)
Zotac nVidia GeForce RTX 4070 SUPER - 12gb
Sound Card
Sound BlasterX G6
Monitor(s) Displays
Koorui G2421V and ViewSonic VX2453
Screen Resolution
P:2560x1440 S:1920x1080
Hard Drives
WD Blue SN5000 - 500gb NVME
WD Blue SN580 - 2TB NVME
Seagate 4TB HDD - ST4000VN008-2DR166
Keyboard
Mountain Everest
Mouse
Logitech G502 Hero
Internet Speed
T-Mobile Home Internet
Browser
Firefox
Other Info
QNAP TS-469 Pro NAS
TP-Link W7200 (2 unit mesh network)
Elgato Streamdeck
I mostly install games on my e drive and my SSD drive
If you have other drives and space is really not a consideration, then I don't see why you would enable it. A couple of restore points will take up that much space.
 

My Computer My Computer

At a glance

Windows 11 25H2Broadwell-e 6850K 4.5ghz @1.36v32GB Corsair LPM 3600 C16EVGA RTX 3080Ti FTW
OS
Windows 11 25H2
Computer type
PC/Desktop
Manufacturer/Model
EVGA home brew
CPU
Broadwell-e 6850K 4.5ghz @1.36v
Motherboard
EVGA X99 FTW K
Memory
32GB Corsair LPM 3600 C16
Graphics Card(s)
EVGA RTX 3080Ti FTW
Sound Card
Asus Centurion true 7.1 headset. (5 speakers in each earpeice)
Monitor(s) Displays
LG C4 55"
Screen Resolution
4K 144hz
Hard Drives
Various models of SSDs ~10TB No HDDs installed.
PSU
be quiet! BN516 Straight Power 12-1000w 80 Plus Platinum
Case
Corsair 780T modified to dual 200mm intake fans
Cooling
Corsair H110i
Keyboard
Corsair K95 Platinum
Mouse
Corsair M65 RGB Elite
Internet Speed
50Mbs
Compact OS is a built-in Windows feature that compresses core operating system files to free up several gigabytes of disk space without removing personal files or apps.

Modern CPUs decompress files instantly, making the speed difference on solid-state drives (SSDs) negligible for everyday tasks.


Enabling Compact OS comes at the cost of performance due to an increase in CPU usage (e.g., longer boot process, slower app launch times).

This is most noticeable in older or underpowered hardware.


Sacrificing raw performance isn’t as critical as storage you can enable Compact OS.
 

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
I'm not going to bother then just to gain 5gb
 

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes

My Computer My Computer

At a glance

Windows 11 Pro + Win11 Canary VM.I9 13th gen i9-13900H 2.60 GHZ16 GB solderedIntegrated Intel Iris XE
OS
Windows 11 Pro + Win11 Canary VM.
Computer type
Laptop
Manufacturer/Model
ASUS Zenbook 14
CPU
I9 13th gen i9-13900H 2.60 GHZ
Motherboard
Yep, Laptop has one.
Memory
16 GB soldered
Graphics Card(s)
Integrated Intel Iris XE
Sound Card
Realtek built in
Monitor(s) Displays
laptop OLED screen
Screen Resolution
2880x1800 touchscreen
Hard Drives
1 TB NVME SSD (only weakness is only one slot)
PSU
Internal + 65W thunderbolt USB4 charger
Case
Yep, got one
Cooling
Stella Artois (UK pint cans - 568 ml) - extra cost.
Keyboard
Built in UK keybd
Mouse
Bluetooth , wireless dongled, wired
Internet Speed
900 mbs (ethernet), wifi 6 typical 350-450 mb/s both up and down
Browser
Edge
Antivirus
Defender
Other Info
TPM 2.0, 2xUSB4 thunderbolt, 1xUsb3 (usb a), 1xUsb-c, hdmi out, 3.5 mm audio out/in combo, ASUS backlit trackpad (inc. switchable number pad)

Macrium Reflect Home V8
Office 365 Family (6 users each 1TB onedrive space)
Hyper-V (a vm runs almost as fast as my older laptop)
It looks like you would save less than 5GB compacting the OS.
That is just for OS, compressing the whole C would gain a little more without consequence.
LZX would gain the most, but it has to be done regularly and can cause lags, even on NVMe.

 

My Computer My Computer

At a glance

Home2FH2CanAMD Ryzen 5 8600G (07/24)2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200...ASROCK Radeon RX 6600 Challenger D 8G @48FPS ...
OS
Home2FH2Can
Computer type
PC/Desktop
CPU
AMD Ryzen 5 8600G (07/24)
Motherboard
ASROCK B650M-HDV/M.2 (07/24) BIOS 4.43 AGESA ComboAM5 1.3.0.1b Patch A (07/26)
Memory
2x32GB Kingston FURY DDR5 5600 MHz CL36 @5200 CL40 (07/24)
Graphics Card(s)
ASROCK Radeon RX 6600 Challenger D 8G @48FPS (08/24)
Sound Card
Creative Sound BlasterX AE-5 Plus (05/24)
Monitor(s) Displays
24" Philips 24M1N3200ZS/00 (05/24)
Screen Resolution
1920×1080@165Hz via DP1.4
Hard Drives
Kingston KC3000 NVMe 2TB (05/24)
ADATA XPG GAMMIX S11 Pro 512GB (07/19)
PSU
Seasonic Core GM 550 Gold (04/24)
Case
Fractal Design Define 7 Mini with 3x Noctua NF-P14s/12@555rpm (04/24)
Cooling
Noctua NH-U12S with Noctua NF-P12 (04/24)
Keyboard
HP Pavilion Wired Keyboard 300 (07/24) + Rabalux 76017 Parker (01/24)
Mouse
Logitech M330 Silent Plus (07/26)
Internet Speed
500/100 Mbps via RouterOS (05/21) & TCP Optimizer
Browser
Edge, Brave for YouTube, LibreWolf for FB
Antivirus
NextDNS blocking 1/3 Traffic
Other Info
Phone: Motorola Moto G86 (02/26)
Backup: Hasleo Backup Suite (PreOS)
Headphones: Sennheiser RS170 (09/10)
Chair: Huzaro Force 4.4 Grey Mesh (05/24)
Notifier: Xiaomi Mi Band 9 Milanese (10/24)
FlexCore USB-C 3.2 Gen 1 (M) to LAN (F) (08/25)

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes
I've seen Disk Cleanup recover much more than that...

Try that first.
I second that. Try Disk Cleanup with "Clean up system files". Let us know if it helps. Worst case it doesn't buy you much back but it can't hurt.
 

My Computer My Computer

At a glance

Windows 11 Professional 25H2Intel Core i9 11900K64GBNVIDIA GeForce GTX 1650
OS
Windows 11 Professional 25H2
Computer type
PC/Desktop
Manufacturer/Model
Digital Storm VELOX
CPU
Intel Core i9 11900K
Motherboard
ASUS PRIME Z590-P
Memory
64GB
Graphics Card(s)
NVIDIA GeForce GTX 1650
Sound Card
Realtek onboard
Monitor(s) Displays
Acer R221Q 21.5"
Screen Resolution
1920 x 1080
Hard Drives
2 x Samsung SSD 990 EVO Plus (1 TB)
2 x Seagate ST4000NE001 (4 TB)
PSU
None
Case
VELOX
Cooling
Cooler Master
Keyboard
Logitech
Mouse
Kensington trackball
Browser
Firefox, Chrome
Antivirus
Windows Defender, Malwarebytes
yep it does help i have 57.5gb left doing it now i have 57.7gb so was there any point in doing it
 

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes
yep it does help i have 57.5gb left doing it now i have 57.7gb so was there any point in doing it
I guess the only point is that you know your disk is as "clean" as Windows thinks it should be.
 

My Computer My Computer

At a glance

Windows 11 Professional 25H2Intel Core i9 11900K64GBNVIDIA GeForce GTX 1650
OS
Windows 11 Professional 25H2
Computer type
PC/Desktop
Manufacturer/Model
Digital Storm VELOX
CPU
Intel Core i9 11900K
Motherboard
ASUS PRIME Z590-P
Memory
64GB
Graphics Card(s)
NVIDIA GeForce GTX 1650
Sound Card
Realtek onboard
Monitor(s) Displays
Acer R221Q 21.5"
Screen Resolution
1920 x 1080
Hard Drives
2 x Samsung SSD 990 EVO Plus (1 TB)
2 x Seagate ST4000NE001 (4 TB)
PSU
None
Case
VELOX
Cooling
Cooler Master
Keyboard
Logitech
Mouse
Kensington trackball
Browser
Firefox, Chrome
Antivirus
Windows Defender, Malwarebytes
Compact OS will reduce the size, it does this by compressing many of the system files. Of course, this incurs some penalty when you access those files to uncompress them. The speed of your processor will have something to do with the amount of performance impact you'll see.
 

My Computers My Computers

  • At a glance

    Win 11 Pro 25H2, Build 26200.9278Intel Core i5 14500, 14th Generation64GB DDR4GeForce RTX 4060
    OS
    Win 11 Pro 25H2, Build 26200.9278
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Brew
    CPU
    Intel Core i5 14500, 14th Generation
    Motherboard
    Gigabyte B760M G P WIFI
    Memory
    64GB DDR4
    Graphics Card(s)
    GeForce RTX 4060
    Sound Card
    Chipset Realtek
    Monitor(s) Displays
    LG 45" Ultragear & Acer 24" 1080p
    Screen Resolution
    5120x1440 & 1920x1080
    Hard Drives
    Crucial P310 2TB 2280 PCIe Gen4 3D NAND NVMe M.2 SSD (O/S)
    Silicon Power 2TB US75 NVMe PCIe Gen4 M.2 2280 SSD (backup)
    Crucial BX500 2TB 3D NAND (2nd backup)
    Seagate 4TB Ironwolf, rotating HDD secondary backup
    External off-line backup Drives: 2 NVMe 4TB drives in external enclosures
    PSU
    Thermaltake Toughpower GF3 750W
    Case
    LIAN LI LANCOOL 216 E-ATX PC Case
    Cooling
    Lots of fans!
    Keyboard
    Microsoft Comfort Curve 2000
    Mouse
    Logitech G305
    Internet Speed
    Verizon FiOS 1GB
    Browser
    Firefox
    Antivirus
    Malware Bytes & Windows Defender Security
  • At a glance

    Win 11 Pro 25H2, Build 26200.9168Intel Core i5 1440032GB DDR5Intel 700 Embedded GPU
    Operating System
    Win 11 Pro 25H2, Build 26200.9168
    Computer type
    PC/Desktop
    Manufacturer/Model
    Home Brew
    CPU
    Intel Core i5 14400
    Motherboard
    Gigabyte B760M DS3H AX
    Memory
    32GB DDR5
    Graphics card(s)
    Intel 700 Embedded GPU
    Sound Card
    Realtek Embedded
    Monitor(s) Displays
    27" HP 1080p
    Screen Resolution
    1920x1080
    Hard Drives
    Crucial P310 2TB NVMe Gen4 SSD
    Samsung EVO 990 2TB NVMe Gen4 SSD
    Samsung 2TB SATA SSD
    Seagate 4TB Ironwolf, rotating HDD secondary backup
    PSU
    Thermaltake Smart BM3 650W
    Case
    Okinos Micro ATX Case
    Cooling
    Fans
    Keyboard
    Microsoft Comfort Curve 2000
    Mouse
    Logitech G305
    Internet Speed
    Verizon FiOS 1GB
    Browser
    Firefox
    Antivirus
    Malware Bytes & Windows Defender Security
  • Nimo N171 17" Laptop, (Intel i3-1215U, 16GB RAM, 2TB NVMe, Win11 Pro)
    Acemagic Vista Mini PC V1 (Intel N150, 16GB RAM, 1TB NVMe, Win11 Pro)
    HP ENVY h8-1540t, (24GB RAM, 2TB SSD, 2TB HDD, Win11 Pro)
so do i need to do anything else
 

My Computer My Computer

At a glance

Windows 11 Pro X64 Version 25H2 Build 26200.8973Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz24GBNVIDIA GeForce GTX 960
OS
Windows 11 Pro X64 Version 25H2 Build 26200.8973
Computer type
PC/Desktop
Manufacturer/Model
Custom Build
CPU
Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz
Motherboard
ASROCK B360M Pro4
Memory
24GB
Graphics Card(s)
NVIDIA GeForce GTX 960
Sound Card
Realtek(R) Audio 6.0.9231.1
Monitor(s) Displays
Generic Monitor (Dell S2721HN)
Screen Resolution
1920x1080
Hard Drives
CT240BX500SSD1
EDILOCA ES106 500GB
SATA SDD
Keyboard
TECKNET Wired Gaming Keyboard Model TK-B002
Mouse
Logitech G203 LIGHTSYNC Gaming Mouse
Browser
Firefox/Chrome
Antivirus
Malwarebytes
Start Windows Explorer and type "%temp%" into the address bar like this:

1787871456598.webp

Press enter. How many files do you see? How old are the oldest files?
 

My Computer My Computer

At a glance

Windows 11 Professional 25H2Intel Core i9 11900K64GBNVIDIA GeForce GTX 1650
OS
Windows 11 Professional 25H2
Computer type
PC/Desktop
Manufacturer/Model
Digital Storm VELOX
CPU
Intel Core i9 11900K
Motherboard
ASUS PRIME Z590-P
Memory
64GB
Graphics Card(s)
NVIDIA GeForce GTX 1650
Sound Card
Realtek onboard
Monitor(s) Displays
Acer R221Q 21.5"
Screen Resolution
1920 x 1080
Hard Drives
2 x Samsung SSD 990 EVO Plus (1 TB)
2 x Seagate ST4000NE001 (4 TB)
PSU
None
Case
VELOX
Cooling
Cooler Master
Keyboard
Logitech
Mouse
Kensington trackball
Browser
Firefox, Chrome
Antivirus
Windows Defender, Malwarebytes

Latest Support Threads

Back
Top Bottom