I installed (KB5065797) (26220.6772) and the wheels fell off! Suddenly many applications no longer run, they just show up in task manager with minimal memory and no activity. Sadly, both my primary browser and my email client are two of the victims, Firefox and Thunderbird! Also among the dead are things like Adobe Reader, but Foxit reader still works. Chrome browser doesn't work, but of course Microsoft EDGE works just dandy! A bunch of other utilities don't work either.

I can't figure out what is going on. I tried to uninstall the update, but Windows just laughed at me and tossed an error. I then did a repair install of build 26220.6772, that all went fine, but the problem remains. DISM and SFC are happy with the running image, no errors. From all appearances, everything is Jake, but lots of stuff doesn't work!
Any words of wisdom before I put the USB drive in and install from scratch?

I can't figure out what is going on. I tried to uninstall the update, but Windows just laughed at me and tossed an error. I then did a repair install of build 26220.6772, that all went fine, but the problem remains. DISM and SFC are happy with the running image, no errors. From all appearances, everything is Jake, but lots of stuff doesn't work!
Any words of wisdom before I put the USB drive in and install from scratch?
- Windows Build/Version
- 26220.6772
My Computers
System One System Two
-
- OS
- Win 11 Pro 25H2, Build 26200.8524
- Computer type
- PC/Desktop
- Manufacturer/Model
- Home Brew
- CPU
- Intel Core i5 14500
- Motherboard
- Gigabyte B760M G P WIFI
- Memory
- 64GB DDR4
- Graphics Card(s)
- GeForce RTX 4060
- Sound Card
- Chipset Realtek
- Monitor(s) Displays
- LG 45" Ultragear, Acer 24" 1080p
- Screen Resolution
- 5120x1440, 1920x1080
- Hard Drives
- Crucial P310 2TB 2280 PCIe Gen4 3D NAND NVMe M.2 SSD (O/S)
Silicon Power 2TB US75 NVMe PCIe Gen4 M.2 2280 SSD (backup)
Crucial BX500 2TB 3D NAND (2nd backup)
Seagate 4TB Ironwolf, rotating HDD archive files
External off-line backup Drives: 2 NVMe 4TB drives in external enclosures
- PSU
- Thermaltake Toughpower GF3 750W
- Case
- LIAN LI LANCOOL 216 E-ATX PC Case
- Cooling
- Lots of fans!
- Keyboard
- Microsoft Comfort Curve 2000
- Mouse
- Logitech G305
- Internet Speed
- Verizon FiOS 1GB
- Browser
- Firefox
- Antivirus
- Malware Bytes & Windows Defender Security
-
- Operating System
- Win 11 Pro 25H2, Build 26200.8524
- Computer type
- PC/Desktop
- Manufacturer/Model
- Home Brew
- CPU
- Intel Core i5 14400
- Motherboard
- Gigabyte B760M DS3H AX
- Memory
- 32GB DDR5
- Graphics card(s)
- Intel 700 Embedded GPU
- Sound Card
- Realtek Embedded
- Monitor(s) Displays
- 27" HP 1080p
- Screen Resolution
- 1920x1080
- Hard Drives
- Crucial P310 2TB 2280 PCIe Gen4 eD NAND PCIe SSD
Samsung EVO 990 2TB NVMe Gen4 SSD
Samsung 2TB SATA SSD
- PSU
- Thermaltake Smart BM3 650W
- Case
- Okinos Micro ATX Case
- Cooling
- Fans
- Keyboard
- Microsoft Comfort Curve 2000
- Mouse
- Logitech G305
- Internet Speed
- Verizon FiOS 1GB
- Browser
- Firefox
- Antivirus
- Malware Bytes & Windows Defender Security





