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Osmankis's avatar
Osmankis
Iron Contributor
Jan 23, 2026

The window change freezes for several seconds

For several months I have been experiencing a strange problem that I had never seen before despite 30 years of Windows.
The behavior is as follows: after prolonged use of an application, if I wish to switch to another app already started, therefore to another window, this is not available immediately, it remains white for several seconds (variable duration, but up to 10 seconds I think, which is a long time!!!). This happens when using Alt+Tab, Win+Tab, or clicking directly on the pinned icon on the taskbar. The application always becomes usable again.
This happens several times a day but I can't say what the triggering factor is.
 
I do a lot of research on the internet, in English-speaking forums: I haven't found anything similar.
 
This one reminds me of the behavior of the Auto Tab Discard extension in Firefox. This extension allows you to pause tabs that have not been used for X seconds, to reduce their CPU footprint (because sometimes I use a very large number of tabs at once over several weeks). And so, when you return to a paused tab, it takes several seconds for it to be reloaded and usable.
 
Machine: Thinkpad T16 gen 2 with AMD Ryzen 7 PRO 7840U
OS: Windows 11 Pro US, updated in 24 hours
RAM: 32Go, generally consumption never exceeds 50% (I would have liked 64Go but these c... from AMD did not offer it on this platform!)
No Windows crash problems due to a faulty RAM stick problem
Note: I have not disabled pagination. but I will try.
Note2: I use OpenShell, but I have never had this type of problem on the dozens of PCs where I installed it, in Win10 like Win11.
 
So I don't know if it's related, but as this junk from Modern Standby sometimes causes me spontaneous Windows crashes (often during standby itself), I activated hibernation which is triggered on battery automatically after? I don't know what Windows mechanism. In short, when it comes to getting out of hibernation, it takes ages, around 60 seconds.  For 16GB of RAM used, read from the NVMe SSD system which I find very fast, this seems strange to me.

1 Reply

  • Christopheo's avatar
    Christopheo
    Iron Contributor
    Jan 26, 2026
    1. Registry Editor: Press the Windows key + R, type regedit, and press Enter to open the Registry Editor.
    2. Navigate: Navigate to the following key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
    3. Shell Icons: Create a new key called Shell Icons if it doesn't exist.
    4. Create DWORD: Right-click in the right pane and select New > DWORD (32-bit) Value.
    5. Name: Name the DWORD NoVisualEffects.
    6. Value: Double-click on the new DWORD and set its value to 1.
    7. Exit: Close the Registry Editor.