Saturday, 6 September 2014

Getting an "Error Verifying Request Signature or Signing Certificate" message on Windows Server (0x800b0101 (-2146762495))

I went through hours of trying to fix this, without finding anything on Google... I hope this gets rated high on the search results for the terms :0x800b0101 (-2146762495)

The short story is simply, don't try to renew an already expired certificate - just issue a new one in the same name.

You can only renew non-expired certificates, otherwise you get the message:

 “Error Verifying Request Signature or Signing Certificate. A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file. 0x800b0101 (-2146762495).”


... Sorry if you have just had to run through tonnes of useless patching that hasn't fixed it!

Friday, 9 May 2014

How to fix Apple Iphone/IOS asking for your password when connecting to ActiveSync (Exchange or Hotmail).

A lot of users at my company appear to be continually asked for their user name and password credentials when trying to retrieve emails (From Exchange) on their iPhones since updating to version 7.1.1

It looks like Apple have somehow screwed something up again!

A three point solution that seems to have fixed the vast majority of these cases within the company:

1) Delete the email account
2) Hold down the power and home button (as if you are taking a screenshot) until the Apple logo comes up (can be a good 10-15 seconds). Let go straight after seeing the Apple logo.
3) When restarted, re add the email account using your correct credentials

Please note from my testing, 50% of phones were fixed after just doing the reset as per step 2. For the ones where this didn't work, I added steps 1 and 3. There are still a few phones that won't save the password - I believe something else is the problem and if I find out, I'll update this post.... It is more than likely this will be stealthy fixed in a future update.

I tested this on:

Iphone 4, 5, 5s
Ios version 7.1.1
Connecting to Microsoft Exchange on premis, Office 365, Outlook.com


Saturday, 1 March 2014

How to upgrade Windows 8 volume license to Windows 8.1 from the Windows Store

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***Update at the bottom***
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After searching for ages, I came up with only complaints online and couldn't actually find a solution... So I thought I would make one!

Remember the days of Windows XP where you could upgrade in so many ways? Windows Update, Slipstream, IT Pro Deployment pack... I really miss how easy Microsoft used to make things!

If you have a volume license edition of Windows 8, you will know that you can't easily upgrade to 8.1 without downloading the 8.1 ISO and performing an upgrade, or upgrading your own deployment infrastructure to support it.

Whilst having your own deployment infrstructure is best for large companies, for smaller companies, this is a real big PITA that you really should try to avoid if you can.

Microsoft have taken the decision that you can't upgrade to 8.1 if you have a volume license edition of Windows. Well... There is a simple solution... Don't use a volume edition!

In order to easily upgrade using the store, open an administrative command prompt, and from there type:

c:\windows\system32\slmgr.vbs /ipk V7C3N-3W6CM-PDKR2-KW8DQ-RJMRD

(This is a Microsoft Retail default key used by OEM/System builders to get through setup, it will not activate, but you don't need it to).

Once you have done this, run "wsrest" to delete the windows store cache and restart your computer.

After you have done this, Windows 8.1 will appear on the Windows Store and you can successfully upgrade to it.

Once you are on Windows 8.1, simply change back to a KMS edition via the volume license default codes:

c:\windows\system32\slmgr.vbs /ipk GCRJD-8NW9H-F2CDX-CCM8D-9D6T9

Then activate against your KMS host

c:\windows\system32\slmgr.vbs /ato


And you are done!



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Update: A lot of people are commenting here about activation failing and the key being blocked.

Please note, this is simply meant to be a way to upgrade 8 VLK edition to 8.1 without a reinstall. It is NOT a way to get Windows for free or bypass licensing.

Once you are upgraded, the step I gave above will reapply a default product key that is not able to activate - it is your job to target your KMS (or other) host and activate in the same way as you did before the upgrade.
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Friday, 3 January 2014

Where has the time gone!

Every time I look at my blog, it pains me that it has been so long since my last post.

I wanted to post about my new job... but I have now been working there for over 2 years and it is taking all my time!

We are just starting 2014 and I have so much to vent! .... If in 2015 I read that this was my last blog post, I'm going to be angry with myself, so, I'm going to write something else straight away! :)

Happy 2014 everyone!

Wednesday, 22 August 2012

Unable to setup alerts on a Drac / Integrated Dell Remote Access Controller 6 Enterprise

If you have a DRAC / Integrated Dell Remote Access Controller 6 - Enterprise and are unable to set up alerts via Google Chrome, I have noticed a little bug where the menu simply states "ok" instead of going to the correct page.



The easiest solution is simply to use Internet Explorer, however, I recommend you attempt to upgrade the DRAC to the latest version available, this is a painless process and does not require the server to be reset.

Next, try pressing the Control + F5 to refresh your cache and you should hopefully now be able to get in to the menu.

I have been seeing mixed reports on this - it appears to work for some people and others seem to still have the bug... Hopefully you will be one of the ones it works fine for.

Thursday, 2 August 2012

Android error sending email: Unable to sign or encrypt message certificate not installed

Someone in the office came to me with a problem today, saying that every time they tried to send an email, the following message is displayed:

unable to sign or encrypt message certificate not installed

It turns out that, for some reason, the option to sign outgoing messages had been turned on by accident - without any client certificate installed for this feature to actually work.

To fix it - there are two options:

1) Install a client certificate if you actually want to sign outgoing emails.

2) Turn signing off.

Hardly anyone signs emails and I am guessing that most people who want to use it will already know how to!

As for turning signing off, it is pretty straight forward.

1. Go to Email settings (Easiest is in the email client, click the menu button and go to settings).

2. Go down to Security Options

3. Untick sign.


Hope this helps!

Friday, 2 March 2012

How to generate a HTTP 400 error from a client

First blog post in a while! I have hardly had any free time... Will blog about it soon!

Anyway, I have needed to generate a 400 error on a server in order to test something - I tried a few things without success and then I discovered that the easiest way to generate a 400 error from a client is simply to add a percentage symbol (%) to the request.

For example, http://mysite.com/% should generate a 400.

Before I found out I could use the percentage symbol, I was looking for a method involving telnet/direct connections. Oliver Salzburg on Super User came up with the following -


... I don't know if this will help anyone, but, if I had found a post like this earlier today, it would have saved me quite a bit of time, so, I hope someone will find it useful!