How to find out what slows down my PC?


My Computer

System One

  • OS
    Windows 11 24H2 26100.4946
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homemade
    CPU
    AMD Ryzen 9 5900X
    Motherboard
    Gigabyte B450M DS3H V2
    Memory
    2*32 GB Micron CP32G4DFRA32A.M16FF DDR4 3200 MHz
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 Ti
    Monitor(s) Displays
    BenQ GW2750H (2)
    Screen Resolution
    1920 x 1080 @ 60 Hz
    Hard Drives
    WD_BLACK 1TB SN850X NVMe
    Samsung SSD 870 Evo
    Antivirus
    Malwarebytes
Directly from AMD? I don't trust Windows Update.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (5699), 25H2 (8457)
    Computer type
    Laptop
    Manufacturer/Model
    Acer Extensa 5630EZ
    CPU
    Mobile DualCore Intel Core 2 Duo T7250, 2000 MHz
    Motherboard
    Acer Extensa 5630
    Memory
    4GB
    Graphics Card(s)
    Mobile Intel(R) GMA 4500M (Mobile 4 series)
    Sound Card
    Realtek ALC268 @ Intel 82801IB ICH9 - High Definition Audio Controller
    Monitor(s) Displays
    1
    Screen Resolution
    1280x800
    Hard Drives
    Samsung SSD 850 EVO 250GB SATA Device (250 GB, SATA-III)
    Internet Speed
    VDSL 50 Mbps
    Browser
    MICROSOFT EDGE
    Antivirus
    WINDOWS DEFENDER
    Other Info
    Legacy MBR installation, no TPM, no Secure Boot, no WDDM 2.0 graphics drivers, no SSE4.2, cannot get more unsupported ;) This is only my test laptop. I had installed Windows 11 here before upgrading my main PC. For my main PC I use everyday see my 2nd system specs.
  • Operating System
    Windows 11 Pro v25H2 (build 26200.8457)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom-built PC
    CPU
    Intel Core-i7 3770 3.40GHz s1155 (3rd generation)
    Motherboard
    Asus P8H61 s1155 ATX
    Memory
    2x Kingston Hyper-X Blu 8GB DDR3-1600
    Graphics card(s)
    GIGABYTE GeForce RTX 3050 WINDFORCE OC V2 6GB (GV-N3050WF2OCV2-6GD)
    Sound Card
    Realtek HD audio (ALC887)
    Monitor(s) Displays
    Sony Bravia KDL-19L4000 19" LCD TV via VGA
    Screen Resolution
    1440x900 32-bit 60Hz
    Hard Drives
    WD Blue SA510 2.5 1000GB SSD as system disk, Western Digital Caviar Purple 4TB SATA III (WD40PURZ) as second
    PSU
    Thermaltake Litepower RGB 550W Full Wired
    Case
    SUPERCASE MIDI-TOWER
    Cooling
    Deepcool Gamma Archer CPU cooler, 1x 8cm fan at the back
    Keyboard
    Mitsumi 101-key PS/2
    Mouse
    Sunnyline OptiEye PS/2
    Internet Speed
    100Mbps
    Browser
    Microsoft Edge, Mozilla Firefox
    Antivirus
    Microsoft Windows Defender
    Other Info
    Legacy BIOS (MBR) installation, no TPM, no Secure Boot, WDDM 3.0 graphics drivers, WEI score 7.4
spapakons said:
Directly from AMD? I don't trust Windows Update.
Click to expand...
I have stopped WU from updating drivers on my desktop PC a long while ago. Had too many problems with it screwing things up by updating devices with troublesome drivers.
 
Last edited:

My Computers

System One System Two

  • OS
    Windows 11 Pro 25H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homebuilt
    CPU
    Intel Core i9 13900K
    Motherboard
    Asus ProArt Z790 Creator WiFi - Bios 3107
    Memory
    Corsair Dominator Platinum 64gb 5600MT/s DDR5 Dual Channel
    Graphics Card(s)
    Sapphire NITRO+ AMD Radeon RX 7900 XTX Vapor-X 24GB
    Sound Card
    External DAC: Cambridge Audio DACMagic200M - Headphone Amp: Topping L50
    Monitor(s) Displays
    Panasonic MX950 Mini LED 55" TV 120hz
    Screen Resolution
    3840 x 2160 120hz
    Hard Drives
    Samsung 980 Pro 2TB (OS)
    Samsung 980 Pro 1TB (Files)
    Lexar NZ790 4TB
    LaCie d2 Professional 6TB external - USB 3.1
    Seagate Expansion 16TB external - USB 3.2
    Seagate One Touch 18TB external HD - USB 3.0
    PSU
    Corsair RM1200x Shift
    Case
    Corsair RGB Smart Case 5000x (white)
    Cooling
    Corsair iCue H150i Elite Capellix XT
    Keyboard
    Incase Ergonomic USB (Microsoft clone)
    Mouse
    Logitech MX Master 3S
    Internet Speed
    Fibre 900/500 Mbps
    Browser
    Microsoft Edge Chromium
    Antivirus
    Bitdefender Total Security
    Other Info
    AMD Radeon Software & Drivers 26.1.1
    Hasleo Backup Suite
    Dashlane password manager
    Kensington Verimark fingerprint reader
    Logitech Brio 4K webcam
    Orico 10-port powered USB 3.0 hub
  • Operating System
    Windows 11 Pro 25H2
    Computer type
    Laptop
    Manufacturer/Model
    Asus Vivobook X1605VA
    CPU
    Intel® Core™ i9-13900H
    Motherboard
    Asus X1605VA bios 309
    Memory
    32GB DDR4-3200 Dual channel
    Graphics card(s)
    *Intel Iris Xᵉ Graphics G7
    Sound Card
    Realtek | Intel SST Bluetooth & USB
    Monitor(s) Displays
    16.0-inch, WUXGA 16:10 aspect ratio, IPS-level Panel
    Screen Resolution
    1920 x 1200 60hz
    Hard Drives
    512GB M.2 NVMe™ PCIe® 3.0 SSD
    Mouse
    Logitech MX Ergo Trackball
    Antivirus
    Bitdefender Total Security
    Other Info
    720p Webcam
    WiFi & USB to ethernet
bloatware, utilities, anything actively logging?
 

My Computer

System One

  • OS
    Win11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Asus Home built
    CPU
    i9-13900
    Motherboard
    ASUS Strix Z790-H
    Memory
    64 GB
    Graphics Card(s)
    Nvidia RTX 5070 TI OC
    Monitor(s) Displays
    Sony 55"
    Hard Drives
    SSD
    PSU
    850 watt EVGA
    Case
    Cooler Master Haf 932
    Cooling
    CoolerMaster
    Keyboard
    RedDragon
    Mouse
    CoolerMaster
    Internet Speed
    300/300
    Antivirus
    Defender
    Other Info
    VR, Virtual Reality
spapakons said:
I have read in other threads that some recent cumulative updates might cause slow down. Uninstall the updates up to a month ago and see if the issue fixes. Then slowly install a few updates at a time. If it sounds complicated, maybe it is easier to reinstall Windows 11 and slowly install the updates a few at a time.
Click to expand...
I read that too.
spapakons said:
Directly from AMD? I don't trust Windows Update.
Click to expand...
Gigabyte. I go with the manufacturer recommendation.
 

My Computer

System One

  • OS
    Windows 11 24H2 26100.4946
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homemade
    CPU
    AMD Ryzen 9 5900X
    Motherboard
    Gigabyte B450M DS3H V2
    Memory
    2*32 GB Micron CP32G4DFRA32A.M16FF DDR4 3200 MHz
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 Ti
    Monitor(s) Displays
    BenQ GW2750H (2)
    Screen Resolution
    1920 x 1080 @ 60 Hz
    Hard Drives
    WD_BLACK 1TB SN850X NVMe
    Samsung SSD 870 Evo
    Antivirus
    Malwarebytes
Update:
Rolled back a few updates incl. 24H2 without success. Uninstalled a few programs. Reinstalled 24H2 again and am up to
While sfc /scannow remains without errors, DISM /Online /Cleanup-Image /RestoreHealth keeps showing HRESULT = 0x800f0915 - CBS_E_REPAIR_CONTENT_MISSING, even when I add a freshly downloaded install USB as a source, like
DISM /Online /Cleanup-Image /RestoreHealth /Source:D:\sources\sxs /LimitAccess
Also tried
DISM /Online /Cleanup-Image /RestoreHealth /Source:WindowsUpdate

Plot twist: Two days ago I noticed that the Ethernet connection has slowed down from 300 to 90 Mbps. Other machines wired to the same router still have 300 Mbps (all via Open DNS and fixed IP). Wifi was still fast, adding it brought it up to 270. Now the combined Ethernet/Wifi is also down to 90. Go figure.

Again, the whole slow-down happens after some time, not sure exactly what time span. Sometimes restart helps, sometimes not.

Safe mode did not give me any insights yet.
 

My Computer

System One

  • OS
    Windows 11 24H2 26100.4946
    Computer type
    PC/Desktop
    Manufacturer/Model
    Homemade
    CPU
    AMD Ryzen 9 5900X
    Motherboard
    Gigabyte B450M DS3H V2
    Memory
    2*32 GB Micron CP32G4DFRA32A.M16FF DDR4 3200 MHz
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 Ti
    Monitor(s) Displays
    BenQ GW2750H (2)
    Screen Resolution
    1920 x 1080 @ 60 Hz
    Hard Drives
    WD_BLACK 1TB SN850X NVMe
    Samsung SSD 870 Evo
    Antivirus
    Malwarebytes
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