Virtio memory balloon Driver 100.91.104.21900
by Red Hat, Inc.Windows 1064-bitSHA-256 verified
- Manufacturer
- Red Hat, Inc.
- Device
- Virtio memory balloon
- Driver version
100.91.104.21900- Release date
- April 26, 2022
- Supported Windows
- Windows 10
- Architecture
- 64-bit (x64)
- File size
- 50 KB
- File name
6ab1ca33-2855-4d83-b076-17b8f1699569_1cab9acc26a86a54827997810e118ae6a33d3bb3.cab- Digital signature
- Signed - catalog
Balloon.cat - INF version
04/26/2022,100.91.104.21900- INF provider
- Red Hat, Inc.
- Device class
- System
- Source
- Microsoft Update Catalog
- Last verified
- July 7, 2026
- SHA-256
e8875e9d9269220b4ff19f7db4780d40c47e41c64bea45f55df9174d57cec92f
Supported hardware IDs (4)
- PCI\VEN_1AF4&DEV_1002
- PCI\VEN_1AF4&DEV_1002&SUBSYS_00051AF4&REV_00
- PCI\VEN_1AF4&DEV_1045
- PCI\VEN_1AF4&DEV_1045&SUBSYS_11001AF4&REV_01
Compare with your device: Device Manager → right-click the device → Properties → Details → Hardware Ids. If one of the values above matches, this driver supports your hardware.
How to install
- Create a restore point(Start → "Create a restore point" → Create), so you can roll back if anything goes wrong.
- Verify compatibility: your Windows version (Windows 10) and architecture (x64)must match this driver, and your device's Hardware ID should appear in the list above.
- Download the file using the button - it comes directly from Microsoft Update Catalog.
- Optionally verify the checksum: open PowerShell, run
Get-FileHash your-download.cab -Algorithm SHA256and compare with the SHA-256 above. - Extract the .cab archive: right-click → Extract All, or run
expand -F:* file.cab C:\driver\in Command Prompt. - Install via Device Manager: right-click your device → Update driver → Browse my computer → point to the extracted folder. Alternatively run
pnputil /add-driver C:\driver\*.inf /install. - Check Device Manager: the device should show no warning icons, and the driver version should match.
How to roll back
If the device stops working after the update: Device Manager → right-click the device → Properties → Driver tab → Roll Back Driver. If the button is greyed out, use the restore point from step 1 (Start → "Recovery" → Open System Restore).
Other versions of this driver
| Version | Released | Source |
|---|---|---|
| 100.102.104.29400 | December 8, 2025 | Microsoft Update Catalog |
| 100.101.104.28400 | July 8, 2025 | Microsoft Update Catalog |
| 100.6.101.58000 | February 11, 2025 | Microsoft Update Catalog |
| 100.100.104.27100 | January 13, 2025 | Microsoft Update Catalog |
| 100.100.104.27100 | January 13, 2025 | Microsoft Update Catalog |
| 100.100.104.26600 | October 21, 2024 | Microsoft Update Catalog |
| 100.95.104.26200 | July 15, 2024 | Microsoft Update Catalog |
| 100.95.104.25300 | March 29, 2024 | Microsoft Update Catalog |
| 100.93.104.23900 | July 4, 2023 | Microsoft Update Catalog |
| 100.92.104.22800 | October 25, 2022 | Microsoft Update Catalog |
| 100.91.104.22300 | August 2, 2022 | Microsoft Update Catalog |
| 100.90.104.21400 | October 30, 2021 | Microsoft Update Catalog |