Skip to content
Microsoft sends PDFs to strange new worlds instead of SharePoint

Microsoft sends PDFs to strange new worlds instead of SharePoint

Theregister • September 29, 2026

Use SharePoint Online? Keen on PDFs? Then you won't be keen on the latest Word bug

Redmond to millions of Power BI users: You’re Fabric app devs now 7 hours ago

Redmond to millions of Power BI users: You’re Fabric app devs now

What eldritch horror lurks behind Heathrow's information screens? 8 hours ago

What eldritch horror lurks behind Heathrow's information screens?

JadePuffer crims hijacked Azure identities and used them to blow up cloud resources 21 hours ago

JadePuffer crims hijacked Azure identities and used them to blow up cloud resources

Microsoft's Copilot super app comes with a meter attached 1 day ago

Microsoft's Copilot super app comes with a meter attached

Dutch government turns to NixOS for a sovereign desktop 1 day ago

Dutch government turns to NixOS for a sovereign desktop

Microsoft has confirmed a bug where saving a PDF from Word for Windows can send the file to an unexpected location with a random name when using SharePoint Online.

The Windows giant's odyssey of bork has continued, following issues that included a less-than-ideal September for its flagship operating system and a paste problem in Excel . The latest breakage affects the document format PDF in Word for Windows.

After a user updates to version 2609 of Word, saving documents as PDFs to SharePoint Online locations can produce a nasty surprise. For starters, the file is saved in C:\Users\[username]\AppData\Local\Microsoft\Windows\INetCache\Content.MSO instead, with a random filename. Worse, Word shows no error to indicate anything went wrong.

According to Microsoft, "The issue only occurs when using Save/Save As, choosing the PDF file type, and selecting a SharePoint location." Use the Export option, or save somewhere else, and all will be well.

The Register asked Microsoft if it is working on a fix and when one might be incoming, but the company has yet to respond. Some affected users have reported that rolling back the update resolves the issue.

Microsoft's customers have had a torrid time of it lately. As well as the paste glitch, a seemingly innocuous Microsoft 365 update inadvertently deactivated Office 2016 and 2019 , and the company recently admitted it had accidentally wiped out some customers' Microsoft 365 data before the expiry of their retention period.

Then there is the ongoing saga of the September Windows update, which caused bugs so severe that Microsoft rushed out an out-of-band update. That out-of-band update brought troubles of its own: on top of lingering audio problems and issues with domain-joined devices, Microsoft admitted that customers using File History might be unable to create or update backups.

Microsoft fixed the latter in the September 22 preview update for Windows, but the others are ongoing. ®

Close the observability gap with agentic observability

POST: How agentic AI, real-time visibility, and stronger governance can help enterprises protect critical services and manage increasingly complex IT environments.

AMD's 192 GB Gorgon Halo prices might leave you petrified

Regular pricing starts at $6,799 - all that memory doesn't come cheap

Huawei Cloud Rolls Out Enterprise AI Products Across the Board, Building an Open Agentic Cloud

PARTNER CONTENT: Huawei Cloud strengthens the silicon bedrock on the cloud

Custom malware used in Citrix 0-day attacks targeting govt, banks, professional services

Two questions remain: who is abusing the CVEs? And why did Citrix take so long to disclose?

Open source datacenters and open source thinking will undo self-inflicted DC damage

Denial and distraction have served the bit barn barons very badly. Wise up

Open source tool distills Jev so you can run it locally

Jevstiller targets 98% agreement by learning familiar requests on your hardware while sending uncertain and audited queries upstream

Astronomer watches Starlink satellites sinking to build a ‘planetary barometer’

Astronomer watches Starlink satellites sinking to build a ‘planetary barometer’

ShinyHunters claims FBI hack: 'This is NOT financially motivated'

ShinyHunters claims FBI hack: 'This is NOT financially motivated'

UPDAted Register reader hit with surprise bill after Microsoft portals disagreed

Register reader hit with surprise bill after Microsoft portals disagreed

EXCLUSIVE Microsoft tells nonprofits their deleted M365 data isn't coming back

Microsoft tells nonprofits their deleted M365 data isn't coming back

Security firm finds naming AI agents after Seinfeld characters helps bots join the team

Security firm finds naming AI agents after Seinfeld characters helps bots join the team

DoJ: Uncle Sam bought forensics software from same Russian operation supplying FSB

DoJ: Uncle Sam bought forensics software from same Russian operation supplying FSB

AMD's 192 GB Gorgon Halo prices might leave you petrified Regular pricing starts at $6,799 - all that memory doesn't come cheap

AMD's 192 GB Gorgon Halo prices might leave you petrified

Regular pricing starts at $6,799 - all that memory doesn't come cheap

Schneider gives datacenter switchgear the software-defined treatment Equinix pilot promises faster deployment and over-the-air upgrades without downtime, provided the code behaves itself

Schneider gives datacenter switchgear the software-defined treatment

Equinix pilot promises faster deployment and over-the-air upgrades without downtime, provided the code behaves itself

Investors are pricing in a 32.6% AI productivity boost for software engineers Economists turn stock movements into an estimate of anticipated gains – while warning that markets can get carried away

Investors are pricing in a 32.6% AI productivity boost for software engineers

Economists turn stock movements into an estimate of anticipated gains – while warning that markets can get carried away

AMD bets $8.2B that worlds matter more than words in AI AI pioneer Fei-Fei Li just co-founded spatial AI research company World Labs in 2024. Now it's joining AMD

AMD bets $8.2B that worlds matter more than words in AI

AI pioneer Fei-Fei Li just co-founded spatial AI research company World Labs in 2024. Now it's joining AMD

AWS needs to embrace its place as the Depot of AI infrastructure What's wrong with being a great wholesaler?

AWS needs to embrace its place as the Depot of AI infrastructure

What's wrong with being a great wholesaler?

Security Russians are posing as Signal support to launch phishing attacks PLUS: US takes down Iranian propaganda sites; Marketing company asks 'Why Do We Have Your Information?' And more!

Russians are posing as Signal support to launch phishing attacks

PLUS: US takes down Iranian propaganda sites; Marketing company asks 'Why Do We Have Your Information?' And more!

Security Microsoft patches failed to fix on-prem SharePoint, which is now under zero-day attack PLUS: China upgrades smartphone surveillance tools; Ring eases anti-snooping stance; and more

Microsoft patches failed to fix on-prem SharePoint, which is now under zero-day attack

PLUS: China upgrades smartphone surveillance tools; Ring eases anti-snooping stance; and more

Black Hat and DEF CON DEF CON Franklin project enlists hackers to harden critical infrastructure Voting village reports have been so successful, says Jeff Moss, that the whole of DEF CON will now be included

Black Hat and DEF CON

DEF CON Franklin project enlists hackers to harden critical infrastructure

Voting village reports have been so successful, says Jeff Moss, that the whole of DEF CON will now be included

Security EQT buys majority in Swiss cybersecurity biz Acronis Went at equivalent of $3.5B+ valuation for entire firm, though portion sold not specified

EQT buys majority in Swiss cybersecurity biz Acronis

Went at equivalent of $3.5B+ valuation for entire firm, though portion sold not specified

Malware Month Ten years since the first corp ransomware, Mikko Hyppönen sees no end in sight On the plus side, infosec's a good bet for a long, stable career

Ten years since the first corp ransomware, Mikko Hyppönen sees no end in sight

On the plus side, infosec's a good bet for a long, stable career

KDE turns 30 and someone's brought an AI-native desktop proposal Akademy talk imagines Plasma assembling itself around a personal model of each user

KDE turns 30 and someone's brought an AI-native desktop proposal

Akademy talk imagines Plasma assembling itself around a personal model of each user

Shopify extends lifeline to Tailwind as vibe coding erodes web dev platform's bottom line Acquisition gives open source CSS framework 'a stable long-term '

Shopify extends lifeline to Tailwind as vibe coding erodes web dev platform's bottom line

Acquisition gives open source CSS framework 'a stable long-term '

Switzerland tests a FOSS escape route from Microsoft 365 Swiss Army sticks a knife in American cloud apps with its own FOSS push

Switzerland tests a FOSS escape route from Microsoft 365

Swiss Army sticks a knife in American cloud apps with its own FOSS push

Feel peak Windows was 7? You might like Kumander Linux Debian and Xfce – solid, sensible choices – with a pretty skin

Feel peak Windows was 7? You might like Kumander Linux

Debian and Xfce – solid, sensible choices – with a pretty skin

Canonical shuttering some of its legacy chat channels The Ubuntu Pastebin went in June, IRC gets demoted

Canonical shuttering some of its legacy chat channels

The Ubuntu Pastebin went in June, IRC gets demoted

Audacity audio-editing app no longer looks like it's from the early 2000s The FOSS tool for audio editing has a fresh coat of paint, and new features to boot

Audacity audio-editing app no longer looks like it's from the early 2000s

The FOSS tool for audio editing has a fresh coat of paint, and new features to boot

Extracted Entities