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Every guide on the site, as the question it answers. Filter by section, device, or system, or type a few words to narrow the list.
https://oldpcguy.com/guides/
Windows 10 & 11
Security updates, ESU, and whether your PC can run Windows 11. Go to Windows 10 and 11 →
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How do I keep getting Windows 10 security updates?
Enroll in free Extended Security Updates (ESU) from Windows Update. Home PCs are covered until October 12, 2027.
Windows 10 after support · How-to · Updated -
Is Windows 10 still safe to use?
Yes, if it's enrolled in ESU and keeps installing updates. Without ESU it gets riskier every month.
Windows 10 after support · Quick answer · Published -
Why isn't the Windows 10 ESU "Enroll now" link showing?
Usually the PC isn't on version 22H2, is missing updates, isn't signed in with an admin Microsoft account, or is linked to a work or school.
Windows 10 after support · Fix · Published -
What do I do with Windows 10 after October 2027?
Upgrade to Windows 11 if the PC qualifies. If not, switch to Linux Mint or ChromeOS Flex, or replace it.
Windows 10 after support · Decision guide · Published -
Can my PC run Windows 11?
Run Microsoft's free PC Health Check. PCs from 2018 on usually pass, and a TPM or Secure Boot failure can often be fixed in the BIOS.
Upgrading to Windows 11 · How-to · Updated -
Windows 11 24H2 support ended. How do I update?
Check your version with winver. If it says 24H2, install version 26H2 from Windows Update, or install it by hand on an unsupported PC.
Upgrading to Windows 11 · How-to · Published -
Should I install Windows 11 on an unsupported PC?
It works with tools like Rufus, but updates aren't guaranteed. Fine for a spare PC, not the one you bank on.
Upgrading to Windows 11 · Decision guide · Updated -
Can a 7th-gen Intel PC run Windows 11?
Not officially, and no setting or processor swap changes that. Your options are ESU for now, Linux, a workaround, or replacing it.
Upgrading to Windows 11 · Decision guide · Published -
What do I do about the Secure Boot certificates expiring?
Keep Windows Update and Secure Boot on. Most PCs update on their own; older ones may need a BIOS update.
Setup & security · How-to · Published -
How do I set up Windows 11 without a Microsoft account?
Make the install USB with Rufus and tick its options to skip the online account and create a local one.
Setup & security · How-to · Published
Fix a problem
Slow, freezing, or failing: find the cause before you spend anything. Go to Fix a problem →
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Why is my computer so slow?
Open Task Manager and see which graph sits near 100%: Disk, Memory, or CPU. That tells you what to fix.
Slow or freezing · Fix · Published -
Why is my laptop slow after a Windows update?
Windows is usually still finishing work in the background. Leave it plugged in for an hour or two, then restart it.
Slow or freezing · Fix · Published -
How do I check if my SSD or hard drive is failing?
Install the free CrystalDiskInfo and read the Health Status. Caution or Bad means back up today.
Health checks · How-to · Published -
How do I check my laptop's battery health?
Run powercfg /batteryreport and divide Full Charge Capacity by Design Capacity. Under 70% means it's time for a new battery.
Health checks · How-to · Published
Speed up & upgrade
SSDs, memory, and when an upgrade is still worth the money. Go to Speed up and upgrade →
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How do I speed up an old laptop or PC?
Do the free fixes first, then swap a hard drive for an SSD and add memory if it's running short.
Where to start · How-to · Updated -
Should I upgrade the SSD or RAM first?
If it still has a hard drive, the SSD, almost always. If it has an SSD but only 4 GB of memory, add memory.
Where to start · Decision guide · Published -
Should I upgrade my old PC or replace it?
Upgrade a PC from about 2018 on if the parts cost well under half of a refurbished replacement. Otherwise replace it.
Where to start · Decision guide · Published -
How do I clone a hard drive to an SSD?
Boot a free tool like Rescuezilla from a USB stick, copy the old drive to the SSD, then swap the SSD in.
SSD & storage · How-to · Published -
Does my laptop have an M.2 slot?
If Windows shows an NVMe drive, yes. Otherwise check the maker's spec sheet for your exact model, or open the cover.
SSD & storage · Quick answer · Published -
How much RAM do I need for Windows 11?
8 GB for everyday use, 16 GB to be comfortable with lots of tabs or for a PC you'll keep for years.
Memory · Quick answer · Updated
Buy used
Refurbished business PCs, the old ThinkPads worth buying, and how to avoid a dud. Go to Buy used →
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Are refurbished computers worth buying?
Yes, if it's an off-lease business model from 2018 or later with an SSD, 8 to 16 GB of memory, and a warranty.
How to buy · Decision guide · Updated -
How old is my computer?
Check the processor in Settings, System, About. For the exact date, look up the serial number on the maker's site.
How to buy · How-to · Published -
What should I check before buying a used laptop?
That it charges with its own charger, has no BIOS password or work account, matches the listing, and every port works.
How to buy · How-to · Published -
What's the best old ThinkPad to buy?
For most people, the T480: it runs Windows 11, takes 32 GB of memory, and has a swappable battery.
Model guides · Model guide · Published -
Is the ThinkPad T480 still good in 2026?
Yes. It runs Windows 11 officially, takes 32 GB of memory and an NVMe SSD, and needs one firmware fix.
Model guides · Model guide · Published -
Is the ThinkPad T440 still worth using?
For web, email, documents, and Linux, yes, with an SSD. It can't run Windows 11 officially.
Model guides · Model guide · Published -
Refurbished ThinkPad or a new cheap laptop?
Usually the ThinkPad: more memory, a better screen and keyboard, and replaceable parts. New wins on warranty and battery.
Comparisons · Comparison · Updated
Linux & alternatives
Free systems that keep an old PC useful after Windows 10. Go to Linux and alternatives →
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What's the best Linux for an old laptop?
Linux Mint for most people. The Xfce edition or Lubuntu for 4 GB or older processors.
Pick a Linux · Decision guide · Updated -
What's the best Linux for an old ThinkPad?
Linux Mint for most models: Xfce on 4 GB or older ones, Cinnamon on 8 GB. Ubuntu or Fedora on a T480 or newer.
Pick a Linux · Decision guide · Published -
What Linux can I run on a 32-bit laptop or netbook?
First check the processor; many netbooks can run 64-bit Linux. If it's truly 32-bit, Debian 12 and antiX 26 still have 32-bit versions.
Pick a Linux · Decision guide · Published -
Is ChromeOS Flex worth it on an old laptop?
Yes, if the laptop is only for the web. For desktop programs or older hardware, Linux Mint is the better fit.
ChromeOS & Chromebooks · Decision guide · Updated -
What do I do with an old Chromebook after its updates end?
Keep it for low-risk use, put Linux on an Intel or AMD model, or Powerwash it and recycle it.
ChromeOS & Chromebooks · Decision guide · Published -
Can I turn an old gaming PC into a console?
Yes, with Bazzite for most graphics cards. SteamOS only supports desktops with AMD graphics so far.
Gaming · How-to · Published
Homelab & servers
Mini PCs, home servers, self-hosted apps, and what old hardware is still good for. Go to Homelab and servers →
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CasaOS or ZimaOS for an old PC home server?
ZimaOS for a dedicated file server with an app store. CasaOS to keep a regular Debian or Ubuntu system underneath.
Getting started · Comparison · Updated -
How do I turn an old PC into a home server?
Pick a 64-bit PC with an SSD, start with CasaOS or ZimaOS, reach it through Tailscale, and back it up.
Getting started · How-to · Updated -
Is the 2013 "trash can" Mac Pro still useful?
For tinkering, yes. OpenCore takes it to macOS Sequoia, and it runs Windows and Linux. As a 24/7 server, it uses too much power.
Hardware · Model guide · Updated -
Which used tiny PC should I buy?
A Lenovo M720q or M920q for the PCIe slot, or a Dell OptiPlex Micro or HP EliteDesk Mini if you don't need it.
Hardware · Model guide · Published -
Is the Lenovo M720q good for a homelab?
Yes. A 6-core i5 with 32 GB runs Proxmox and a handful of VMs on about 11 to 14 watts at idle.
Hardware · Model guide · Published -
Is an old enterprise server worth running at home?
Usually not. It costs more in power each year than a used tiny PC costs to buy, and it's loud.
Hardware · Decision guide · Published -
Are recertified hard drives safe to buy?
Manufacturer-recertified drives usually are, for backups and home servers. Test every one when it arrives.
Hardware · How-to · Published -
Can I run Pi-hole on an old PC?
Yes. Any 64-bit PC with Debian works. Install Pi-hole, give the PC a fixed address, and point your router at it.
Apps to self-host · How-to · Published -
Can Immich replace Google Photos on an old PC?
For most families, yes. You need 8 GB of memory, an SSD, and Docker, and you have to handle backups yourself.
Apps to self-host · How-to · Published -
How do I build a Proxmox cluster on mini PCs?
Use three nodes, give each its final name and fixed IP first, and keep VM storage on a NAS.
Proxmox · How-to · Published -
How do I install Proxmox on an old PC or mini PC?
Turn on virtualization in the BIOS, write the ISO to a USB stick with Etcher or Rufus in DD mode, install to the SSD, then switch to the free no-subscription updates.
Proxmox · How-to · Published
Backup, wipe & recycle
Move your files, erase the old computer, and get rid of it the right way. Go to Backup, wipe and recycle →
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How do I move everything to a new computer?
Copy your folders to an external drive, back up with Windows Backup, sign in with the same Microsoft account, and reinstall programs.
Move to a new PC · How-to · Updated -
How do I wipe a computer before selling it?
Back up, then Reset this PC with Remove everything and Clean data on. For an SSD, turn on encryption first.
Wipe & sell · How-to · Updated -
Where can I recycle an old computer in Topeka?
The Shawnee County Household Hazardous Waste facility takes electronics free, except $40 per CRT. Best Buy also takes most electronics.
Recycle or reuse · Local guide · Updated -
What should I do with an old laptop?
Speed it up, give it Linux or a new job, sell or donate it, or recycle it free if it's done.
Recycle or reuse · Decision guide · Published -
Where can I get rid of an old TV in Topeka?
The Shawnee County Household Hazardous Waste facility takes flat-screen TVs free and tube TVs for $40. Best Buy charges $29.99 per TV.
Recycle or reuse · Local guide · Published
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