C drive nearly full, why?


I copied the largest of the files in System Volume Information into Everything and all it does is show the same information as TreeSize, except that it does show the time when the file was modified. Right clicking on the file name in Everything gives an option for Read Extended Information, but that did nothing.
I have also tried reducing the amount of disk space used for system protection to 157Gb and that has reduced the number of files in System Volume Information to 11 and File Explorer now shows 178Gb free.

That's like 30% of your drive size. Most times System Restore is 5-10%.

Why so much space?
 

My Computers

System One System Two

  • OS
    Windows 11 23H2 Current build
    Computer type
    PC/Desktop
    Manufacturer/Model
    HomeBrew
    CPU
    AMD Ryzen 9 3950X
    Motherboard
    MSI MEG X570 GODLIKE
    Memory
    4 * 32 GB - Corsair Vengeance 3600 MHz
    Graphics Card(s)
    EVGA GeForce RTX 3080 Ti XC3 ULTRA GAMING (12G-P5-3955-KR)
    Sound Card
    Realtek® ALC1220 Codec
    Monitor(s) Displays
    2x Eve Spectrum ES07D03 4K Gaming Monitor (Matte) | Eve Spectrum ES07DC9 4K Gaming Monitor (Glossy)
    Screen Resolution
    3x 3840 x 2160
    Hard Drives
    3x Samsung 980 Pro NVMe PCIe 4 M.2 2 TB SSD (MZ-V8P2T0B/AM) } 3x Sabrent Rocket NVMe 4.0 1 TB SSD (USB)
    PSU
    PC Power & Cooling’s Silencer Series 1050 Watt, 80 Plus Platinum
    Case
    Fractal Design Define 7 XL Dark ATX Full Tower Case
    Cooling
    Arctic Liquid Freezer III 420 RGB + Air 3x 140mm case fans (pull front) + 1x 120 mm (push back) and 1 x 120 mm (pull bottom)
    Keyboard
    SteelSeries Apex Pro Wired Gaming Keyboard
    Mouse
    Logitech MX Master 3S | MX Master 3 for Business
    Internet Speed
    AT&T LightSpeed Gigabit Duplex Ftth
    Browser
    Nightly (default) + Firefox (stable), Chrome, Edge , Arc
    Antivirus
    Defender + MB 5 Beta
  • Operating System
    ChromeOS Flex Dev Channel (current)
    Computer type
    Laptop
    Manufacturer/Model
    Dell Latitude E5470
    CPU
    Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz, 2501 Mhz, 2 Core(s), 4 Logical Processor(s)
    Motherboard
    Dell
    Memory
    16 GB
    Graphics card(s)
    Intel(R) HD Graphics 520
    Sound Card
    Intel(R) HD Graphics 520 + RealTek Audio
    Monitor(s) Displays
    Dell laptop display 15"
    Screen Resolution
    1920 * 1080
    Hard Drives
    Toshiba 128GB M.2 22300 drive
    INTEL Cherryville 520 Series SSDSC2CW180A 180 GB SATA III SSD
    PSU
    Dell
    Case
    Dell
    Cooling
    Dell
    Mouse
    Logitech MX Master 3S (shared w. Sys 1) | Dell TouchPad
    Keyboard
    Dell
    Internet Speed
    AT&T LightSpeed Gigabit Duplex Ftth

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self build
    CPU
    Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz 3.19 GHz
    Motherboard
    Gigabyte Technology Co., Ltd. Z390 AORUS PRO-CF
    Memory
    32.0 GB
    Graphics Card(s)
    Nvidia Quadro P400 graphics card
    Monitor(s) Displays
    iiyama
    Screen Resolution
    2560 x 1440
Assuming you don't count on System Restore points you currently have, did you try and turn it off which will delete all current points? You can then turn it back on and create a restore point manually

A Guy
 

My Computers

System One System Two

  • OS
    Windows 10 Home x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    INTEL Core i5-11400
    Motherboard
    ASUS PRIME H570-PLUS
    Memory
    KINGSTON HyperX Fury Black DDR4 16GB (2 x 8GB) 3200MHz, CL16
    Graphics Card(s)
    EVGA GeForce GTX 750 Superclocked 1GB 128-Bit GDDR5
    Monitor(s) Displays
    LG 32MA68HY 32" IPS
    Screen Resolution
    1920 x 1080
    Hard Drives
    SAMSUNG 250GB 970 EVO Plus NVMe, M.2 SSD, Crucial 250GB MX500, SEAGATE 500GB Barracuda® 7200.12, SATA 3 Gb/s, 7200 RPM, 16MB cache
    PSU
    CORSAIR RM550x 80 PLUS Gold 550W
    Case
    ANTEC P10 FLUX
    Cooling
    be quiet! Pure Rock 2, 5 x 120 mm Case Fans
    Internet Speed
    480 + Mbps Up/ 12+ Mbps Down
    Browser
    Vivaldi Snapshot
    Antivirus
    Avast
  • Operating System
    Windows 10 Home x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Intel Core i5-750
    Motherboard
    ASUS P7P55D
    Memory
    Kingston HyperX Fury Black 8GB (2x4GB) DDR3-1600MHz CL8
    Graphics card(s)
    MSI GeForce GT 240 N240GT-MD1G/D5 1 GB DDR5
    Monitor(s) Displays
    LG 32MA68HY 32" IPS
    Screen Resolution
    1980x1040
    Hard Drives
    Samsung Electronics 840 EVO 120GB, SEAGATE 500GB Barracuda® 7200.12, SATA 3 Gb/s, 7200 RPM, 16MB cache
    PSU
    Antec TruePower New TP-550 550W
    Case
    Antec 300
    Cooling
    Cooler Master Hyper 212+, 4 Noctua NF-P12 120mm, 1 Noctua NF-P14 FLX
    Internet Speed
    480+ Mbps Down/12+Mbps Up
    Browser
    Vivaldi Snapshot
    Antivirus
    Avast
Assuming you don't count on System Restore points you currently have, did you try and turn it off which will delete all current points? You can then turn it back on and create a restore point manually

A Guy
Very odd that deleting restore points, leaving only 1, still leaves 6 files which look as if they are restore points. I wonder if there is a problem with Win 11 not deleting restore points when it should.
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Self build
    CPU
    Intel(R) Core(TM) i7-8700 CPU @ 3.20GHz 3.19 GHz
    Motherboard
    Gigabyte Technology Co., Ltd. Z390 AORUS PRO-CF
    Memory
    32.0 GB
    Graphics Card(s)
    Nvidia Quadro P400 graphics card
    Monitor(s) Displays
    iiyama
    Screen Resolution
    2560 x 1440
Very odd that deleting restore points, leaving only 1, still leaves 6 files which look as if they are restore points.
Download this and run it as admin, it should clean as much as possible.

I wish I knew.
You can limit the size to 320MB minimum or more, that should also remove any used space over the limit.
Code:
vssadmin Resize ShadowStorage /For=C: /On=C: /Maxsize=20GB
 

My Computer

System One

  • OS
    Windows 11 Home
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 5 3600 & No fTPM (07/19)
    Motherboard
    MSI B450 TOMAHAWK 7C02v1E & IFX TPM (07/19)
    Memory
    4x 8GB ADATA XPG GAMMIX D10 DDR4 3200MHz CL16
    Graphics Card(s)
    MSI Radeon RX 580 ARMOR 8G OC @48FPS (08/19)
    Sound Card
    Creative Sound Blaster Z (11/16)
    Monitor(s) Displays
    24" Philips 24M1N3200ZS/00 (05/24)
    Screen Resolution
    1920×1080@165Hz via DP1.4
    Hard Drives
    ADATA XPG GAMMIX S11 Pro SSD 512GB (07/19)
    PSU
    Seasonic M12II-520 80 Plus Bronze (11/16)
    Case
    Lian Li PC-7NB & 3x Noctua NF-S12A FLX@700rpm (11/16)
    Cooling
    CPU Cooler Noctua NH-U12S@700rpm (07/19)
    Keyboard
    HP Wired Desktop 320K + Rabalux 76017 Parker (01/24)
    Mouse
    Logitech M330 Silent Plus (04/23)
    Internet Speed
    400/40 Mbps via RouterOS (05/21) & TCP Optimizer
    Browser
    Edge & Brave for YouTube & LibreWolf for FB
    Antivirus
    NoAV & Binisoft WFC & NextDNS
    Other Info
    Backup: Hasleo Backup Suite (PreOS)
    Notifier: Xiaomi Mi Band 7 NFC (05/24)
    Headphones: Sennheiser RS170 (09/10)
    Phone: Samsung Galaxy Xcover 7 (02/24)
    2nd Monitor: AOC G2460VQ6 @75Hz (02/19)
Very odd that deleting restore points, leaving only 1, still leaves 6 files which look as if they are restore points. I wonder if there is a problem with Win 11 not deleting restore points when it should.
My thinking was to turn it off, deleting ALL restore points

A Guy
 

My Computers

System One System Two

  • OS
    Windows 10 Home x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    INTEL Core i5-11400
    Motherboard
    ASUS PRIME H570-PLUS
    Memory
    KINGSTON HyperX Fury Black DDR4 16GB (2 x 8GB) 3200MHz, CL16
    Graphics Card(s)
    EVGA GeForce GTX 750 Superclocked 1GB 128-Bit GDDR5
    Monitor(s) Displays
    LG 32MA68HY 32" IPS
    Screen Resolution
    1920 x 1080
    Hard Drives
    SAMSUNG 250GB 970 EVO Plus NVMe, M.2 SSD, Crucial 250GB MX500, SEAGATE 500GB Barracuda® 7200.12, SATA 3 Gb/s, 7200 RPM, 16MB cache
    PSU
    CORSAIR RM550x 80 PLUS Gold 550W
    Case
    ANTEC P10 FLUX
    Cooling
    be quiet! Pure Rock 2, 5 x 120 mm Case Fans
    Internet Speed
    480 + Mbps Up/ 12+ Mbps Down
    Browser
    Vivaldi Snapshot
    Antivirus
    Avast
  • Operating System
    Windows 10 Home x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    Intel Core i5-750
    Motherboard
    ASUS P7P55D
    Memory
    Kingston HyperX Fury Black 8GB (2x4GB) DDR3-1600MHz CL8
    Graphics card(s)
    MSI GeForce GT 240 N240GT-MD1G/D5 1 GB DDR5
    Monitor(s) Displays
    LG 32MA68HY 32" IPS
    Screen Resolution
    1980x1040
    Hard Drives
    Samsung Electronics 840 EVO 120GB, SEAGATE 500GB Barracuda® 7200.12, SATA 3 Gb/s, 7200 RPM, 16MB cache
    PSU
    Antec TruePower New TP-550 550W
    Case
    Antec 300
    Cooling
    Cooler Master Hyper 212+, 4 Noctua NF-P12 120mm, 1 Noctua NF-P14 FLX
    Internet Speed
    480+ Mbps Down/12+Mbps Up
    Browser
    Vivaldi Snapshot
    Antivirus
    Avast
My thinking was to turn it off, deleting ALL restore points

A Guy
I stopped using System Restore years ago. System Restore has let me down way more times than it has helped me. An imaging program such as Macrium Reflect is more dependable.
 

My Computers

System One System Two

  • OS
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    Samsung SAM0A87 Samsung SAM0D32
    Screen Resolution
    1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    ESET Internet Security
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-S
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Mouse
    Logitek M185
    Keyboard
    Logitek K270
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
I stopped using System Restore years ago.
As did I. SR has not been even reasonably dependable for me since Windows 7. In the years since WIndows 10 came out, not one time has system restore worked when I needed it, both on my own system , but others as well. I turned it off and reclaimed the disk space as I felt it was useless.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 22631.3880
    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 nvme+256gb SKHynix m.2 nvme /External +512gb Samsung m.2 sata+1tb Kingston m2.nvme
    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
Assuming you don't count on System Restore points you currently have, did you try and turn it off which will delete all current points? You can then turn it back on and create a restore point manually

A Guy

Very odd that deleting restore points, leaving only 1, still leaves 6 files which look as if they are restore points. I wonder if there is a problem with Win 11 not deleting restore points when it should.

My thinking was to turn it off, deleting ALL restore points

A Guy

This. Not deleting, but turning it off completely. then reboot. Then see how much space you have left.

Don't worry for now about the comments regarding whether it works or not - obviously you have several hundred MBs of files, so yours is saving ... something. Once you have the space recovered, then let's target if you want to turn it back on, or go with something else. One step at a time.
 

My Computers

System One System Two

  • OS
    Windows 11 23H2 Current build
    Computer type
    PC/Desktop
    Manufacturer/Model
    HomeBrew
    CPU
    AMD Ryzen 9 3950X
    Motherboard
    MSI MEG X570 GODLIKE
    Memory
    4 * 32 GB - Corsair Vengeance 3600 MHz
    Graphics Card(s)
    EVGA GeForce RTX 3080 Ti XC3 ULTRA GAMING (12G-P5-3955-KR)
    Sound Card
    Realtek® ALC1220 Codec
    Monitor(s) Displays
    2x Eve Spectrum ES07D03 4K Gaming Monitor (Matte) | Eve Spectrum ES07DC9 4K Gaming Monitor (Glossy)
    Screen Resolution
    3x 3840 x 2160
    Hard Drives
    3x Samsung 980 Pro NVMe PCIe 4 M.2 2 TB SSD (MZ-V8P2T0B/AM) } 3x Sabrent Rocket NVMe 4.0 1 TB SSD (USB)
    PSU
    PC Power & Cooling’s Silencer Series 1050 Watt, 80 Plus Platinum
    Case
    Fractal Design Define 7 XL Dark ATX Full Tower Case
    Cooling
    Arctic Liquid Freezer III 420 RGB + Air 3x 140mm case fans (pull front) + 1x 120 mm (push back) and 1 x 120 mm (pull bottom)
    Keyboard
    SteelSeries Apex Pro Wired Gaming Keyboard
    Mouse
    Logitech MX Master 3S | MX Master 3 for Business
    Internet Speed
    AT&T LightSpeed Gigabit Duplex Ftth
    Browser
    Nightly (default) + Firefox (stable), Chrome, Edge , Arc
    Antivirus
    Defender + MB 5 Beta
  • Operating System
    ChromeOS Flex Dev Channel (current)
    Computer type
    Laptop
    Manufacturer/Model
    Dell Latitude E5470
    CPU
    Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz, 2501 Mhz, 2 Core(s), 4 Logical Processor(s)
    Motherboard
    Dell
    Memory
    16 GB
    Graphics card(s)
    Intel(R) HD Graphics 520
    Sound Card
    Intel(R) HD Graphics 520 + RealTek Audio
    Monitor(s) Displays
    Dell laptop display 15"
    Screen Resolution
    1920 * 1080
    Hard Drives
    Toshiba 128GB M.2 22300 drive
    INTEL Cherryville 520 Series SSDSC2CW180A 180 GB SATA III SSD
    PSU
    Dell
    Case
    Dell
    Cooling
    Dell
    Mouse
    Logitech MX Master 3S (shared w. Sys 1) | Dell TouchPad
    Keyboard
    Dell
    Internet Speed
    AT&T LightSpeed Gigabit Duplex Ftth
Back
Top Bottom