OptiPlex GX620 – Windows 7 and 8.1 64 Bit


This model and Operating System is not supported by Dell.

Legacy BIOS

See Updating the BIOS.

Hardware Upgrades

CPU Upgrade – for WIndows 8.1 64 Bit compatibility

SSD – Solid State Drives

RAM – Random Access Memory

Its recommended to upgrade to 4 GB of RAM:

Refer to the User’s Guide when upgrading components.

Windows OS

For best results Clean Install wiping all partitions:

OS Updates

Chipset

Video

Audio

Follow instructions here for using the Microsoft Update Catalog then follow instructions here for driver installation via the device manager.

Dell Backup and Recovery

Only install if you have a larger than a 120 GB SSD/HDD

Note this system won’t be able to boot from a Rescue Disk (external hard drive) so make a Factory Backup (Bootable USB Flash Drive).

5 thoughts on “OptiPlex GX620 – Windows 7 and 8.1 64 Bit

  1. How can I get the SATA Driver for this? I want to install Windows 7 on the OptiPlex GX620. Thanks in advance.

    1. I have Windows 10 32-bit installed on mine and everything works and runs very well. I haven’t tried 64-bit but the system is limited to 4GB of RAM so there’s no reason to (and it would run slower anyway).

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