PC is Suddenly Slowing Down

Dragon Drop

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Lately my PC has been showing "low on memory" messages, and now it's starting to run very slow. I know those things can be indications of a virus or other such problem, but I just did a full system scan (using Norton) and it didn't find anything wrong. What else might I try?
 

My Computer

System One

  • OS
    64-bit Windows 8
    System Manufacturer/Model
    HP 23-D030
Hello mate, :)

If you removed the page file, it could be the cause of the "low on memory" error message. Using a page file set to be managed by the system should stop this issue.

Manage Virtual Memory Pagefile in Windows 10
 

My Computer

System One

  • OS
    64-bit Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Custom self built
    CPU
    Intel i7-8700K OC'd to 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G7 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    OCZ Series Gold OCZZ1000M 1000W
    Case
    Thermaltake Core P3
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gb/s Download and 35 Mb/s Upload
    Browser
    Internet Explorer 11
    Antivirus
    Malwarebyte Anti-Malware Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
I did that, and it didn't help. However, I notice that it's happening mainly when I have several Word and/or Adobe Acrobat files open at the same time. Maybe all those files are using up the memory. I hope it's nothing more serious than that.
 

My Computer

System One

  • OS
    64-bit Windows 8
    System Manufacturer/Model
    HP 23-D030
Could be. You can check in Task Manager > Performance tab to see how much of your system resources are being used while you have all this open to see if it's pegged out or not.
 

My Computer

System One

  • OS
    64-bit Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Custom self built
    CPU
    Intel i7-8700K OC'd to 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G7 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    OCZ Series Gold OCZZ1000M 1000W
    Case
    Thermaltake Core P3
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gb/s Download and 35 Mb/s Upload
    Browser
    Internet Explorer 11
    Antivirus
    Malwarebyte Anti-Malware Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
From the indications given by Task Manager and Resource Monitor, it appears that whenever I have Adobe Acrobat Reader open, the amount of memory it uses will gradually increase even if I'm not adding or modifying any files. Could it be that Adobe is creating more and more backup files all the time that it's open? Even then, it shouldn't use up all of my memory. I have 6 gigabytes of internal memory and a 1 terabyte hard drive.
 

My Computer

System One

  • OS
    64-bit Windows 8
    System Manufacturer/Model
    HP 23-D030
As a test, you might manually increase the size of the page file to see if you still get a "low on memory" message afterwards. You may need to keep increasing the size until you stop getting the message.
 

My Computer

System One

  • OS
    64-bit Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Custom self built
    CPU
    Intel i7-8700K OC'd to 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G7 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    OCZ Series Gold OCZZ1000M 1000W
    Case
    Thermaltake Core P3
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gb/s Download and 35 Mb/s Upload
    Browser
    Internet Explorer 11
    Antivirus
    Malwarebyte Anti-Malware Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
Thanks
 

My Computer

System One

  • OS
    Windows 10 Pro
    Computer type
    PC/Desktop
    CPU
    Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
    Motherboard
    MSI Z77A-G43 GAMING
    Memory
    12.0 GB
    Browser
    Google Chrome Version 85.0.4183.121
    Antivirus
    ESET Internet Security 13.2.18.0
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