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bwilkerson217
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August 28th, 2025 16:56
SupportAssist Restore slow Windows Cumulative Updates
So I am thinking my organization cannot be the only one experiencing this but when we get new Dell computers or use Dell SupportAssist restore to reinstall Windows the computers take forever and often fail on installing Windows Updates. Especially the Cumulative Updates. We have thousands of Dell computers and they all act like this. Many times we end up doing a repair install or install Windows over the top to fix these issues.
Now if we just use a downloaded version of Windows Pro and install the Updates go a lot smoother. The problem with this is the lack of drivers for models that often affect functionality like keyboards and touchpads.
Didn't used to be this way with Windows 10 and even early on with Windows 11 but since 23H2 and 24H2 this has been a painful issue for us.
bwilkerson217
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Posted September 2nd, 2025 13:54
@user_e7c402
Thank you for your reply. I guess on some level I am glad it is not just us but I want to know what is wrong with Dell's image that is causing this.user_e7c402
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Posted September 2nd, 2025 15:55
YEs, strange. When we wipe trough intune cumulative updates take forever. Like a full day sometimes.
If we creat an own usb stick, remove all drives except one, and reinstall fresh image created by ourselves whe are done within an hour totally.
I wonder why this is the case as well.Rico Roodenburg
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Posted September 19th, 2025 17:39
Hi,
We have exactly the same issue with Dell laptops. In my case we are testing the following systems:
- Dell Pro 14 Plus
- Dell Pro 14 Premium
Dell OS Recovery Image will install Windows 11 24H2 May 2025 version. After reinstall, CU 2025-05 will download and install first. This takes a lot of time on an average of 2 hours.
After the first CU, it will download and install the latest CU. Again a lot of time.
user_e7c402
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Posted September 2nd, 2025 13:38
We have exactly the same problem.
Dell image and windows udpates takes forever.
Fresh Windows 11 image and updates goe way faster after reinstall.